Cardinals infielder Mark DeRosa injured his left wrist while swinging Tuesday night against the Giants.
DeRosa is hitless in his last nine at-bats since landing in St. Louis following a trade from Cleveland.
He said he felt a "little tweak" while swinging and missing Randy Johnson's changeup before striking out in the fourth inning.
DeRosa said he expected to have tests done on his wrist Wednesday.
DeRosa To Have Tests On Wrist