We’re at the final 7 days of the month of July, so you should expect trades to come in at any time. The last we heard from Roy Oswalt is that he favors the St. Louis Cardinals, and is willing to restructure is $16 million club option for 2012. Depending on who you ask, the Astros either are motivated to move their ace pitcher or they’re not, so we’ll keep a running list of the Sunday Oswalt rumors here for your convenience.

Cardinals John Mozeliak says (via Joe Strauss of the St. Louis Post-Dispatch), “We’re continuing to explore a number of things, it doesn’t look great right now.” The removal of Haren from the trade market likely makes the asking price in personnel for Oswalt too high for the Cardinals.

Jim Salisbury of CSNPhilly.com says the Philadelphia Phillies left-handed pitcher J.A. Happ looked good in five innings of three-run ball against the Rockies today. Astros scout Matt Galante was on hand to watch Happ pitch.

Oswalt said (via Brian McTaggart of MLB.com) that he wouldn’t veto a potential trade in exchange for a getting another chance to tie the club’s all-time wins record. He is one shy of Joe Niekro’s record. “It would be nice,” Oswalt said of becoming the franchise’s all-time wins leader. “We’ll have to wait and see what happens.”

Buster Olney of ESPN tweets, “Heard this: Besides the three-team stuff we’ve heard with Jayson Werth, the Phillies in the last 48 hours have been trying to swap him directly for a starting pitcher regarded as a No. 4-type of guy, or better, as a fallback to the Oswalt/Haren talk.”

Ken Rosenthal of FOXSports tweets, “Still #Phillies #Cardinals #Dodgers on Oswalt. Player/$$$ issues with LA. Tough match with STL. If Phils move Werth they remain best positioned. But one exec says Phils’ goals in a Werth deal “seem to change by the day.”

Astros president Tal Smith (via Nick Cafardo of The Boston Globe) says that things should heat up by tomorrow (today). There is “considerable interest” in Oswalt, with “three or four” teams trying to make it happen. The three or four teams likely are the Cardinals, Phillies, Twins and Yankees. Cafardo points out that Oswalt is one of the most successful second-half pitchers in baseball with a record of 70-23 over his career.