Philadelphia Phillies left-hander Cole Hamels has four years remaining on his contract. (Getty Images)

If the Dodgers want to acquire Philadelphia Phillies pitcher Cole Hamels, as has been rumored, it will reportedly cost them one of their top position-player prospects.

The Dodgers would prefer to keep shortstop Corey Seager and center fielder Joc Pederson, according to FoxSports.com, which would make a play for Hamels unlikely.

Hamels, who is from San Diego, cannot contractually block a trade to the Dodgers according to the report.

The Phillies are attempting to rebuild their expensive, aging roster, making them less interested in a veteran outfielder (Andre Ethier, Carl Crawford or Matt Kemp) than teams in “win-now mode.” Hence their interest in the Dodgers’ prospects.

Hamels, who turns 31 on December 27, ranks sixth among active pitchers with a 3.27 ERA and second with a 1.142 WHIP. He finished sixth in 2014 Cy Young Award balloting after going 9-9 with a 2.46 ERA in 30 starts.