The former Arizona Diamondbacks pitcher has struggled in his last two games, giving up a two-run double to the Oakland Athletics in Game 4 of the ALDS, and then allowing the Yankees to tie the Tigers with two home runs in the ninth inning in Game 1 of the ALCS.
"I'm going to wait and see how things play out. It could happen. I hope we've got to worry about it. But I'll wait and see how it plays out, what the lineup looks like, who they've got coming up. Things like that."
In Sunday's Game 2 win, lefty Phil Coke earned the save rather than Valverde. He went two innings and gave up one hit while striking out three batters.
Valverde played for Arizona from 2003-07. He spent two years with the Houston Astros before landing in Detroit.