"The injury I picked up against West Ham meant I had to miss the Brighton trip. It's nothing serious and I trained at the start of this week, so should be available for selection this evening," he wrote in the club's matchday programme.
"It was something that I've had before - a little irritation of the joint in my left ankle. Sometimes these things flare up when you make certain movements in a game and I landed on it badly when going to clear the ball from Carlton Cole.
"I tried to play on and it didn't feel too bad, but I couldn't run or jump to my full ability so at 5-1 it was better to come off and not take risks."
The 27-year-old has made 29 appearances in all competitions this season.