Contreras is not in the lineup for Sunday's game against the Yankees, Lynn Worthy of the St. Louis Post-Dispatch reports.
Contreras sat for Game 1 of Saturday's twin bill and is back out of the starting nine for Sunday's series finale. He's 2-for-12 in four games since he went 4-for-4 against the Cubs on June 25 in London. Andrew Knizner will step in behind the plate to catch for Jordan Montgomery.