England fly-half Owen Farrell is a doubt for next weekend's Six Nations clash with Italy at Twickenham due to injury.
Farrell sustained a quad injury in the 23-13 victory over France last weekend and has not been running in training since, although he is expected to be back in the build-up to next weekend.
"In the next week he'll be running, but the problem will be kicking. If there's a doubt we won't risk it," said England coach Stuart Lancaster to BBC Sport.
Lancaster also revealed that Ben Morgan would not be fit in time to face the Italians, but could play a part against Wales on the final weekend.
Wasps number eight Billy Vunipola will be in contention to face Italy, but Alex Corbisiero, Jonathan Joseph, Tom Croft and Calum Clark have all been ruled out of the final two matches.