According to Jon Heyman of Sports Illustrated, he says the Chicago White Sox are considering Houston Astros’ pitcher Roy Oswalt, but they are leery of a switch from the National League to the American League.

The big obstacle involving any deal with Oswalt is his salary requirements. Most teams will inherit most of the $7 million he’s due for this year in addition to his $16 million owed to him in 2011 and the $2 million buyout for his 2012 team option. The amount the team is responsible for depends on what kind of prospect package they would send to the Astros.