Jansen, 29, went 3-2 with a 1.83 ERA and 47 saves in 68 2/3 innings for the Dodgers in 2016. The right-handed reliever initially did not want to participate in WBC 2017 because of his heavy workload last season, but he reconsidered after the Dutch advanced past the second round.
"I'm going," said Jansen. "Hopefully I can pitch so we can try to win it. I talked to players, with [Jurickson] Profar, [manager] Hensley [Meulens].
"I have to say -- guys that I grew up playing baseball with, they're playing hard. Watching them, why not [go play]?