England wing Elliot Daly is closing in on retaining his place for Saturday's showdown with Ireland at the Aviva Stadium.
Daly is observing the 'return to play' protocols for concussion after being the victim of a tip-tackle by hooker Fraser Brown in last weekend's 61-21 rout of Scotland - a win that confirmed Eddie Jones' men as RBS 6 Nations champions.
If passed fit, Daly is likely to start on the left wing for the climax to the tournament in Dublin, where England will seeking a record-breaking 19th successive Test victory.
"Elliot is progressing really well through the 'return to play' protocols. He's gone through every stage really well so far," forwards coach Steve Borthwick said.
"He has a contact session (on Wednesday) afternoon and then it's team training (on Thursday)."
England will become only the sixth team in the history of the tournament - and the first of the Six Nations era - to defend the Grand Slam if they topple Ireland.
"This squad keeps looking ahead and the players thrive on the next challenge. This is our next challenge and the players are desperate to get better," Borthwick said.
"This is the next challenge and the next opportunity to show that we're improving.
"Ireland are a very good side and have a forward pack who have experience and are able to show what quality and pace they have. Their half-backs are good, so they're a good side."