Mariners general manager Jerry Dipoto certainly knows how to throw a holiday bash.At the Mariners' team holiday party Thursday, Dipoto made an unexpected announcement to a crowd of Mariners employees, family Maury Wills Jersey and friends.MORE: "I will ask you to keep this under wraps, don't tweet it for the next 45 minutes or so, but we are bringing Hisashi Iwakuma back to the Mariners," Dipoto said.The partygoerscheered the Alex Verdugo Jersey announcement that the 34-year-old right-hander would be returning. Only hours earlier, Iwakuma seemed bound for the Dodgers and a lucrative free-agent deal worth $45 million over three years.But several Thursday noted the Dodgers had found undisclosed "i sues Blank Jersey " with Iwakuma's physical. Almost before media outlets could report that the Mariners were expre sing interest in re-signing Iwakuma, Dipoto dropped his holiday party surprise.Iwakuma is 47-25 with a 3.25 ERA in four MLB seasons, all with the Mariners. He has a 1.082 WHIP in 111 career games.Dipoto called the signing Blake Treinen Jersey a "finishing touch" on the Mariners' offseason, Mariners beat reporterreported."This is a big move for us," Dipoto said."We feel like this really puts a finishing touch on what we think has been a very productive offseason.The Mariners announce they have re-signed Hisashi Iwakuma to 2016 contract with vesting options for 17 and 18. Kuma is back. Shannon Drayer (@shannondrayer) I mean, that's quick even for Dipoto! Shannon Drayer Rich Hill Jersey (@shannondrayer)