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Guillermo Heredia has started six games in a row and with the Mariners headed to a two-game series with NL West leaders Colorado Rockies, Heredia will take a seat so they can keep Nelson Cruz in the lineup. (Source: Bob Dutton on Twitter)

Fantasy Impact: Heredia is hitting .286 this season with three home runs, eight RBI, and 15 runs. Heredia has been a nice surprise this season and the hope is Heredia will get in the lineup for one of the two NL games coming up.


Edwin Diaz pitched a perfect ninth inning on Sunday against the Red Sox, striking out two batters.

Fantasy Impact: It wasn't a save situation, but it was great to see Diaz get the ball again in the ninth inning and pitch well. He's certainly back as the Mariners closer, and will try to regain his status as an elite reliever in the coming weeks.


Robinson Cano went 2-for-5 with a two-run home run in Sunday's win over the Red Sox.

Fantasy Impact: Cano also doubled. He continues to be a solid fantasy producer, posting an average of .294 to go with nine homers, 32 RBIs, and 23 runs scored. He has four multi-hit games over his last seven played.


Rob Whalen was given a spot start in the Seattle Mariners rotation on Saturday and took his first loss of the season. Whalen lasted 5 1/3 innings against the Boston Red Sox, as he surrendered five earned runs in the outing. Boston knocked around Whalen for seven hits, walked twice, and Jackie Bradley Jr. jacked a two run home run in the sixth.

Fantasy Impact: Rob Whalen is not a fantasy commodity. Despite being just 23, there is not too much upside here. He was called up to serve as a long-reliever and does not feature anything special in his repertoire. His fastball is not overpowering, his slider is average, and he may struggle without a putout pitch at this level.


Jarrod Dyson was one of the only bring spots for the Mariners on Saturday, going 2-for-4 with a SB.

Fantasy Impact: The stolen base was his 14th of the year and that leads the AL. Dyson is a great source of steals and is worth owning for that category alone.


Yovani Gallardo logged 5 1/3 innings of three-run ball against the Boston Red Sox on Friday. He walked six, gave up seven hits, and struck out five.

Fantasy Impact: Gallardo's struggles to command the strike zone make him a highly volatile fantasy commodity. Despite his 5.76 ERA, Gallardo's FIP of 4.62 says he may be getting a little unlucky. Unfortunately, opposing batters are making plenty of hard contact as well as medium contact against him. Use with caution in any form of fantasy as he is prone to blowups that can tank a week or ruin a night in DFS.


Jean Segura had a good outing against the Nationals on Thursday, going 2-for-4 with a BB, run scored and a SB.

Fantasy Impact: Segura sports a .335 BA on the year, which is tied for the best among all AL SS. He hit a bit of a slump over the past week, but continues to find a way to get on base, and should be starting in most fantasy formats.


Nelson Cruz hit his 12th HR in the 6th innings against the Nationals on Thursday. He went 1-for-3 with three RBIs, a BB, HR and a run scored.

Fantasy Impact: Cruz is having a great season, batting .296 with 40 RBIs and 12 HRs. He is playing OF in NL parks, so he belongs in your starting lineup on a daily basis.


Ariel Miranda tossed five innings of two run baseball for the Mariners on Thursday in their win over the Washington Nationals. Miranda allowed three hits, walked three, and struck out four. An Anthony Rendon home run and Jayson Werth RBI single were the sole pieces of damage done against Miranda in his short outing.

Fantasy Impact: The 28 year old Miranda has actually been an intriguing streamer candidate this season. He plays his home games in one of the best pitcher parks, has a K/9 rate above 8.00, and has shown the capability of brilliance, which is something to look for in DFS options. He has now allowed four earned runs in his last 17 innings of work since an eight run blow up on May 9th. That one game has adversely impacted his season long stats in what may be one of the more intriguing deep league pitcher options as a streamer, and someone to get a little exposure of in DFS, for those willing to take on risk.


Mike Zunino returned to the big leagues on Monday, after a brief stint in the minors. In his first game back, he went 1-for-3 with a solo HR.

Fantasy Impact: The HR was nice to see, but Zunino still has a ways to go before fantasy owners can trust him again. The good news however is the Zunino has very little competition around him for the starting job.


Kyle Seager went 2-for-3 with a pair of singles in the Mariners' 10-1 loss to the Nationals on Tuesday.

Fantasy Impact: Seager hasn't displayed much extra-base hit power this season with only five doubles, four homers and a triple through 43 games played. He has a long way to go to match last year's 69 extra-base hits in 158 games. Fantasy owners should stay patient with the 29-year-old third baseman.


Christian Bergman was knocked around for ten earned runs over four innings pitched against the Washington Nationals on Tuesday. The Nationals tallied fourteen hits and smacked four home runs off of Bergman.

Fantasy Impact: Christian Bergman had a nice outing last week but showed why he is a spot starter this time around. He does not have the raw repertoire to make him a viable fantasy asset and he is likely going to lose his role following the pending returns of James Paxton and Felix Hernandez.


Chris Heston was shelled by the Chicago White Sox on Sunday. He was pulled after throwing three innings where he gave up seven runs (six earned). Heston walked four and allowed seven hits.

Fantasy Impact: Chris Heston is not fantasy relevant, even in deeper AL-only formats. Heston enjoyed success in 2015 but has not returned to that form.


James Paxton is on track to rejoin the Mariners' rotation on May 31 in a contest against the Rockies. He's been sidelined by forearm tightness since the beginning of May. (Source: Ryan Divish on Twitter)

Fantasy Impact: Paxton is expected to make a rehab start with the team's Double-A affiliate on Friday. If all continues to go well in his recovery, he'll be back by the end of the month. Owners are hoping he can pick up where he left off as one of the best producers in baseball. Paxton posted an ERA and WHIP of 1.43 and 0.98 with three wins and 45 strikeouts over his first six appearances spanning 37 2/3 innings of work.


Mitch Haniger will begin his rehab assignment in the coming days. He's been sidelined since the end of April due to an oblique injury. (Source: Greg Johns on Twitter)

Fantasy Impact: Haniger is closing in on a return, as he could rejoin the Mariners by the end of the week if all goes well while on rehab assignment. The preseason sleeper was off to a hot start prior to his injury, posting an OPS of 1.042 with four homers and 16 RBIs in his first 21 games.


Danny Valencia is set to undergo an MRI on his injured wrist. He's considered day-to-day. (Source: Ryan Divish on Twitter)

Fantasy Impact: Depending on the results, Valencia could be heading to the DL. It's disappointing since he's been better of late after a slow start. He's posted an OPS of .710 with four homers and 16 RBIs on the season.


Nick Vincent worked a clean ninth inning as the Seattle Mariners walked off against the Chicago White Sox.

Fantasy Impact: Nick Vincent is now firmly in the mix to receive save opportunities in light of the decision to remove Edwin Diaz from the role. Vincent will need to thrive to eventually earn and keep the job full time. If Diaz begins to lessen his walks, he could jump back into job he recently relinquished.


Sam Gaviglio earned a spot start on Thursday against the Chicago White Sox. While he did not factor into the decision, he threw an admirable five innings of shutout baseball.

Fantasy Impact: Gaviglio is not fantasy relevant unless he pitches well and James Paxton and Felix Hernandez remain on the disabled list due to setbacks.


Felix Hernandez resumed throwing on Wednesday, playing catch before the Mariners game. There is no definitive timetable for return although this is a positive step forward.

Fantasy Impact: King Felix is not even close to being the same pitcher fantasy owners became accustomed to years ago. He had a sparkling 1.01 BB/9 before going down but held a sub 8.00 K/9. However, he was surrendering 2.03 home runs per game but was victim to an incredibly high BABIP of .388. The one red flag is the highly elevated home runs allowed rate, but he is not surrendering more hard contact than last year. Hernandez may be able available on waivers for owners that valued him in terms of production rather than name recognition. He may be worth stashing once a timetable for his minor league rehab assignment becomes clearer.


Mariners OF Ben Gamel continued his excellent start to the season on Saturday, going 2-for-4 with an RBI double in a 7-2 loss.

Fantasy Impact: Gamel now has two HR and 12 RBI, but that .339 average certainly carries it a lot better than his career average of .273. Kudos to the Mariners for finally seeing value in the 25-year old who struggles to find playing time with the Yankess.


Mariners SP Ryan Weber left Saturday's game clutching his arm after throwing a pitch in the fourth inning. Weber had allowed only one run on three hits in 3 2/3 innings. (Source: Mark Zwolinski on Twitter)

Fantasy Impact: Weber was making his first start of the season, filling in for one of the many already-injured Mariners starters. Keep an eye out for injury updates on Weber.