Seattle Mariners acquired All-Star pitcher Luis Castillo from the Cincinnati Reds in exchange for four prospects. The Reds also sent outfielder Tyler Naquin and lefty relief pitcher Phillip Diehl to the New York Mets for multiple prospects.
The New York Yankees made the first big pre-trade deadline move when they acquired All-Star outfielder Andrew Benintendi from the Kansas City Royals.
What other deals could be made as the countdown to the deadline continues? USA TODAY Sports will provide updates on all the key trades.
Among the closers who could possibly be dealt before Tuesday’s deadline are: the Orioles’ Jorge Lopez, the Tigers’ Gregory Soto, the Marlins’ Tanner Scott, the Pirates’ David Bednar and the Cubs’ David Robertson.