Sir Alex Ferguson will cross his fingers over Rio Ferdinand after he suffered a foot injury in Manchester United's 2-2 draw with Middlesbrough.
United can ill afford to lose Ferdinand for long with fellow centre-back Nemanja Vidic out for three weeks and some crucial matches coming up in the Premier League and Champions League.
The draw with Boro sees United just three points ahead of Chelsea, and they have to face Arsenal next weekend before going to Stamford Bridge on April 26.
Ferdinand limped off during the match and left the stadium with his foot in a plastic case, as a precaution.
Ferguson said: "Hopefully it's not serious with Rio but he was limping for too long.
"The danger was to keep carrying on with him when he was limping he was not playing at his full performance level."
It looks unlikely that Ferdinand will play in the Champions League second leg against Roma, especially with Gerard Pique impressing Ferguson as a replacement for the England defender.
"Pique came on and did absolutely terrific, he was absolutely marvellous and I think that helped us actually," added Ferguson.
United can ill afford to lose Ferdinand for long with fellow centre-back Nemanja Vidic out for three weeks and some crucial matches coming up in the Premier League and Champions League.
The draw with Boro sees United just three points ahead of Chelsea, and they have to face Arsenal next weekend before going to Stamford Bridge on April 26.
Ferdinand limped off during the match and left the stadium with his foot in a plastic case, as a precaution.
Ferguson said: "Hopefully it's not serious with Rio but he was limping for too long.
"The danger was to keep carrying on with him when he was limping he was not playing at his full performance level."
It looks unlikely that Ferdinand will play in the Champions League second leg against Roma, especially with Gerard Pique impressing Ferguson as a replacement for the England defender.
"Pique came on and did absolutely terrific, he was absolutely marvellous and I think that helped us actually," added Ferguson.