Cardinals outfielder Reggie Sanders might miss a month or more because of a broken bone in his right leg. Sanders was placed on the 15-day disabled list Monday, three days after he collided with center fielder Jim Edmonds as they chased a flyball. Tests Sunday showed that the 37-year-old left fielder has a hairline fracture of his right fibula that team doctors estimate could keep him out four to six weeks. "I feel like I played football for a couple of days," Sanders said. "You look at all the dynamics and it's not what I wanted, but here it is." Sanders was second on the Cardinals with 18 home runs, third with 44 RBI and first with 14 stolen bases in 15 attempts. He had been chasing his first career 30-30 season. It is just the latest injury for the Cardinals, who are fortunate to have a double-digit lead in the NL Central. "There's never a decent cushion," manager Tony La Russa said. "You have one bad week, nobody's talking about a cushion."