Manchester United's veteran midfielder Ryan Giggs is facing a spell on the sidelines due to a fresh hamstring injury.
The 36-year-old returned to action in the 2-2 draw with West Bromwich Albion after two weeks out, but limped off just before half-time at Old Trafford.
Manager Sir Alex Ferguson told MUTV: "The loss of Ryan as a wide player was a big one for us. He has done his hamstring again.
"He got it against Bolton, but he had trained all week and had been doing very well.
"But it has gone again and maybe we need to give him a longer recovery."
Former Wales international Giggs has been in the first-team set-up at Old Trafford for two decades, making more than 800 appearances in all competitions.