Joe Girardi's 10-year tenure as New York Yankees manager came to an end on Thursday.
The Yankees advanced to the American League Championship Series under Girardi this year but lost to the Houston Astros in seven games after taking a 3-2 series lead.
Girardi, who had just completed a four-year, $16 million contract, took over the Yankees in 2008 and won a World Series title in 2009, the franchise's 27th, but has not added another since.
He said in a statement: "With a heavy heart, I come to you because the Yankees have decided not to bring me back,
"I'd like to thank the Steinbrenner family for believing in me and giving me this wonderful opportunity. I would like to thank Brian Cashman and his staff for hiring me and always trying to improve the team.
"Finally, I'd like to thank the fans for their great support as a player, coach and manager and the lasting memories of their passion and excitement during the playoff games, especially the final six games, which will remain in my heart forever."
Yankees general manager Cashman said: "I want to thank Joe for his 10 years of hard work and service to this organisation. Everything this organisation does is done with careful and thorough consideration, and we've decided to pursue alternatives for the managerial position.
"As [managing general partner] Hal Steinbrenner and I mentioned to Joe directly this week, he has been a tremendous Yankee on the field and away from it, as a player, coach and manager. He has a tireless work ethic, and put his heart into every game he managed over the last decade.
"He should take great pride in our accomplishments during his tenure, and I wish Joe and his family nothing but success and happiness in the future."
This year's run to the ALCS gave fans hope for the future based on young stars such as Aaron Judge, Didi Gregorius, Gary Sanchez and Aaron Hicks, dubbed the "Baby Bombers."
There appear to be no clear candidates internally to replace Girardi, although first-base coach Tony Pena had MLB managing experience. Girardi's bench coach, Rob Thomson, is well thought of in the organisation but might not be the kind of high-profile name the organisation might want.
|CC Sabathia likes the Yankees being a ´hated team´ again|
|Pirates send McCutchen to Giants|
|Cardinals veteran Yadier Molina: Three more years before retirement|
|MLB champions Astros land Cole in trade with Pirates|
|Blue Jays, Donaldson avoid arbitration|
|Red Sox avoid arbitration with Bogaerts, eight others|
|Astros invited to White House to honour World Series title|
|Rockies, Davis reach record deal|
|Former Marlin Gordon feels sorry for team-mates stuck in Miami|
|#FakeNews – Yu Darvish denies deal with Cubs|
|San Francisco Giants acquire Evan Longoria from Rays|
|Gonzalez bids emotional farewell to Dodgers|
|Rangers acquire Moore from Giants|
|Angels manager Scioscia has no concerns about Ohtani´s elbow|
|Roberts confirms Dodgers were ´very in tune´ with Stanton, Ohtani|
|Dodgers All-Star Seager set to avoid elbow surgery|
|Stanton rips ´unprofessional´ and ´circus times´ with Marlins|
|Stanton excited to step into ´winning environment´ with Yankees|
|Yankees confirm Stanton deal|
|Angels intend to use Ohtani as a two-way player|
|Marlins slugger Stanton rejects trade to Giants|
|MLB trade news: Mariners acquire Dee Gordon from Marlins|
|Yankees appoint Boone as new manager|
|Blue Jays acquire former All-Star Diaz from Cardinals|
|Jennifer Lopez trumpets Alex Rodriguez for Yankees job|
|Yankees All-Star Judge undergoes shoulder surgery|
|MLB great Joe Morgan urges voters not to elect steroid users to Baseball HOF|
|Altuve, Stanton named MVPs|
|Mariners acquire slugger Healy from Athletics|
|Kluber, Scherzer win 2017 MLB Cy Young awards|
|Jeter: Marlins listening to offers for All-Star Stanton|
|Molitor, Lovullo take Manager of the Year honours|
|Judge, Bellinger unanimous MLB Rookie of the Year winners|
|Astros´ Beltran announces retirement after 20 MLB seasons|
|Red Sox´s Betts rolls perfect 300 in World Series of Bowling|
|Twins CF Buxton named MLB Defensive Player of the Year|
|Altuve, Stanton headline Silver Slugger Award winners|
|Astros´ Altuve headlines MLB Players Choice Award winners|
|Promising Red Sox prospect dies aged 17|
|Alex Rodriguez not interested in managing Yankees|
|Five teams with multiple Gold Glove winners|
|Former MLB pitcher Roy Halladay killed as plane crashes in Gulf of Mexico|
|Cashman: Girardi wasn´t able to connect with Yankees players|
|MLB selling dirt from Astros´ game-seven World Series win|
|Yankees, Dodgers headline MLB awards finalists|
|Pirates pick up McCutchen´s 2018 option|
|World Series victory parade reveals 56 years of emotion for Astros|
|Tanaka decides not to opt out of Yankees contract|
|Darvish thanks Dodgers and fans after World Series loss|
|Angels, Upton agree to five-year contract|
|Tigers congratulate Verlander on World Series title|
|Springer named MVP after Astros´ World Series win|
|Astros´ Correa proposes to girlfriend after winning World Series|
|Astros clinch first World Series with game-seven win over Dodgers|
|BREAKING NEWS: Astros win first World Series|
|Dodgers´ Bellinger breaks Judge´s infamous record|
|Hinch preparing for fitting ending to ´epic´ World Series|
|Dodgers force game seven against Astros|
|Astros manager Hinch willing to do whatever it takes to win game six|
|Astros´ Hinch cites favourite moment from game-five win|
|Phillies hire Dodgers executive Gabe Kapler as manager|
|Washington Nationals hire Dave Martinez as new manager|
|Astros´ Hinch and Correa revel in latest World Series thriller|
|Astros take World Series lead after game-five thriller|
|Astros manager Hinch says every game feels ´critical´|
|Dodgers rally past Astros, level World Series|
|Kimbrel, Jansen named 2017 Relievers of the Year|
|Astros´ Gurriel suspended five games in 2018 for gesture|
|Roberts: Dodgers need Wood to perform|
|Astros take World Series lead with game-three victory|