"The Cardinals' search for pitching depth has returned them to free agent righthander Roy Oswalt despite the club's persistent denials that it is actively pursuing its longtime nemesis.

The Cardinals are among a handful of teams that have extended a short-term bid to the former Houston Astros ace, who in recent years repeatedly has expressed a desire to play in St. Louis.

Oswalt, 34, is believed close to a decision. The Texas Rangers, Boston Red Sox and Astros are also reported to be pursuing the three-time All-Star, who carries a career 153-93 record and 3.21 ERA. Oswalt has been plagued by back problems that have limited him to 43 starts the past two seasons but remained effective enough to provide the Philadelphia Phillies with 16 wins and a 2.96 ERA in 221 2/3 innings covering 35 starts since being traded in July 2010.

Cardinals general manager John Mozeliak has played down any pursuit of a veteran starting pitcher since the Cardinals' involvement in trade discussions including Kyle Lohse and Jake Westbrook became known during December's winter meetings. Mozeliak has suggested the club is now more inclined to add a veteran presence to its bullpen, something Oswalt's addition could bring.

Lohse and Westbrook are entering the final installment of multi-year deals that include full no-trade protection. Signing Oswalt could lead to a competition among three starters for two starting berths during spring training or possibly entice one of the club's incumbent starters to waive his no-trade protection."