According to two sources close to Jayson Stark of ESPN, Roy Oswalt is asking the Philadelphia Phillies, or any team to acquires him, to guarantee his $16 million team option for 2012 before he would waive his no-trade clause.

The Phillies aren’t biting on that request.

Yesterday we heard that the Phillies and the Astros are working on a trade that would send Oswalt to Philadelphia. Oswalt has a no-trade clause in his contract and he is owed the remainder of his $15 million for this season, $16 million for next season and a $12 million team option for 2012 with a 2 million buyout.

Philadelphia is believed to have no problem paying most of the $25 million he’s owed through next year, but they do not want to pick up the $12 million 2012 option.

It’s believed that J.A. Happ will be sent from Philadelphia to Houston in this deal. The Astros had a scout, Doug Brocail, in Indianapolis to watch Happs last appearance.