Matty said:
It'll be precautionary. He'll take no part in the Watford FA Cup game but I would imagine he'll be available for the Spurs game in a weeks time. If it was particularly serious there's no way he'd have stayed on the pitch last night, we'd have seen the game out with 10 players and got him off sharpish.
He shouldn't have stayed on the pitch anyway. He's in pain, we're 9-0 up on aggregate with ten minutes of the match to go - Send him straight down the tunnel for immediate treatment.
This will be infuriating if he misses Spurs or Chelsea. A complete dead rubber of a match we're cruising in - lose our seasons top goal scorer. We've dealt with injuries really well so far but we need a run of luck for a bit, no team can suffer them constantly to seemingly every important player in the squad. Aguero, Silva, Nasri, Yaya was out albiet briefly, Kompany, now Negredo? It's ridiculous. That's before you consider Jovetic and Rodwell!