(CBS) Now that the All-Star break is over, the Chicago Cubs have their work cut out for them to catch the surging Milwaukee Brewers, but they hope their acquisition of White Sox ace left-hander Jose Quintana will help their playoff hopes.

Quintana joined the Cubs on Friday in Baltimore as they opened their three-game series against the Orioles. Quintana will make his Cubs debut Sunday and said he was happy to be with the team.

“Honestly, I appreciate this opportunity,” Quintana told reporters before Friday’s game.

He said he was surprised by the abrupt blockbuster trade that was finalized Thursday and sent four prospects, including outfielder Eloy Jimenez, to the White Sox. The Cubs have had trouble with their starting rotation and hope Quintana can give them a boost.

Cubs first baseman Anthony Rizzo welcomed Quintana.

“It’s a really good feeling as a player for us to come back with a brand-new addition after a nice break – it’s just amazing,” Rizzo said.

The reigning champion Cubs were 5 1/2 games behind the NL Central-leading Brewers entering play Friday.

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