The Three Lions saw their Euro 2020 dream ended in the final by Italy.
The Azzurri won a penalty shootout 3-2 at Wembley after the contest had finished 1-1.
Grealish has responded to Keane on social media insisting he put his hand up, but allowed Gareth Southgate to make the final call.
He said: "I said I wanted to take one!!!! The gaffer has made so many right decisions through this tournament and he did tonight!
"But I won't have people say that I didn't want to take a peno when I said I will…"
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