UPDATE (1:30 p.m. PT): The trade is now official, and the story has been updated to reflect that. 

The Oakland A's bolstered their bullpen on Saturday, acquiring right-handed reliever Jeurys Familia from the New York Mets in exchange for a prospect, a Triple-A reliever, and international slot money, according to multiple reports. 

Familia's posted a 2.88 ERA and 1.23 WHIP across 40 2/3 innings this season. He has 17 saves (tied-for-17th in MLB entering Saturday) in 21 opportunities in 2018.  The 28-year-old is set to become an unrestricted free agent at the end of the season, and the A's will pay his remaining $3 million salary, according to The Athletic's Ken Rosenthal.

23-year-old third baseman Will Toffey, an A's fourth-round pick in the 2017 draft, and 26-year-old reliever Bobby Wahl will head to the Mets. Toffey's batting .244 with 5 homers and 32 RBI in Single-A this season. Wahl, who pitched 7 2/3 innings in seven appearances with the A's last season, has a 0.86 WHIP in 39 2/3 innings with Triple-A Nashville this year. 

The A's will also send $1,000,000 in international slot money to the mets. 

The San Francisco Chronicle's Susan Slusser first reported on Friday that Oakland was interested in Familia. The A's reportedly emerged as frontrunners for Familia Friday evening.