You might be wondering why the Phillies acquired a 38-year-old infielder who is hitting .053 (2 for 38) on Thursday.

Freddy Galvis is the reason the Phils picked up John McDonald from the Cleveland Indians in a trade for a player to be named later.

Galvis’ playing time has shrunk recently -- entering Thursday night’s game against the Dodgers he’d had just three at-bats in the previous nine games -- and the Phillies’ brass doesn’t want the 23-year-old infielder’s development to stagnate.

So, Galvis was sent to Triple A Lehigh Valley after Thursday night’s game. McDonald will join the club Friday.

Neither manager Charlie Manuel nor GM Ruben Amaro Jr. would confirm that Galvis would be the player sent out prior to Thursday's game, but the writing on the wall was pretty clear.

“I think Freddy has to have some at-bats,” Manuel said. “It’s hard to play every now and then. We have tremendous expectations for Freddy. If he’s going to play once a week -- that’s not enough. But we’ll see.”

Galvis has appeared in 54 games and is hitting .207 in 164 at-bats.

With Chase Utley having come off the disabled list last week, Manuel seems keen on riding his veteran infielders -- Utley at second, Jimmy Rollins at shortstop and Michael Young at third -- to see if the Phillies can make a surge in the standings. If the Phils don’t make a run, management could trade any one of the three aforementioned players and Galvis would be right back to take over the vacated spot.

The Phils entered play Thursday night at 38-41, seven games back in the NL East. The remaining 17 games before the All-Star break could determine whether the Phils hang on to their core players or look to trade talent that could also include Cliff Lee, Jonathan Papelbon and Carlos Ruiz. The Phils are not looking to give anyone away, but would listen to any team that presents an attractive package. For Lee, it would have to be super-attractive.