The Cardinals are attempting to reach a deal with starting pitcher Adam Wainwright on a contract extension but realize the clock is ticking, the St. Louis Post-Dispatch reports Monday. 

Wainwright has made it clear that come April 1 opening day he no longer wants to discuss his contract. Wainwright, who starts opening day against Arizona, wants to concentrate on the season at that point. 

Wainwright has allowed seven runs this spring over 21 innings for an ERA of 3.00 with 15 strikeouts. After his last start he proclaimed himself ready for the season.