The Blues boss insisted Emmanuel Eboue should have been sent off for the challenge which saw Terry suffer ankle ligament damage.
Grant - who saw his 15-match unbeaten run ended - was adamant Chelsea can still win the title and Eboue should have been dismissed.
He said: "I was told from TV pictures it was a red card but I didn't see it. I need to see it, but they said it was a red card.
Eboue was later taken off on a stretcher after being scythed down by Joe Cole. He will have tests today but is expected to be out for three weeks with a knee ligament injury.