The Toronto Blue Jays addressed their bullpen on the same day of their doubleheader, acquiring a reliever from the opposing team. Toronto traded for right-hander Seranthony Dominguez, sending pitching prospect Juaron Watts-Brown to the Baltimore Orioles.The deal was finalized after Toronto’s 16-4 loss to the Orioles in game one on Tuesday. Dominguez then made his Blue Jays debut hours later, pitching against his former team, striking out two batters for a clean seventh inning.The Blue Jays announced the club designated veteran reliever Chad Green for assignment in a corresponding move.Dominguez, 30, is a hard-throwing reliever with a 30 per cent strikeout rate entering Tuesday. He pitched to a 3.24 ERA across 41 2/3 innings in Baltimore this season with 54 strikeouts. He’s also played for the Philadelphia Phillies.Dominguez will be a free agent at season’s end.Watts-Brown, 23, was drafted by the Blue Jays in the third round of the 2023 MLB Draft. He was ranked as the Blue Jays’ 10th-best prospect, according to MLB.com. He appeared in games with Single-A Vancouver and Double-A New Hampshire this season. Green endured a tough year pitching out of Toronto’s bullpen this season, registering a 5.56 ERA and allowing 14 home runs across 43 2/3 innings. The 34-year-old appeared in Tuesday’s game against Baltimore, giving up four earned runs on four hits.Toronto enters Wednesday’s game against Baltimore as losers of four straight, carrying a four-game division lead over the second-place New York Yankees, and five games up on the Boston Red Sox.Jose Berrios will start for the Blue Jays, with Dean Kremer countering for Baltimore.