Mike Tindall has tipped Chris Robshaw as a potential candidate to captain the British and Irish Lions side later this year.
The England captain has led the side to three wins out of three so far in the Six Nations, including a 23-13 win over France yesterday evening.
Tindall told BBC Radio 5 live: "It is tough at the moment to pick who will get that job.
"If we go in with a Grand Slam-winning team, he will be hard-pushed not to be a number one candidate."
Wales captain Sam Warburton has also been linked to the role, but the flanker was dropped from the starting lineup against Italy after missing the France game through injury.
The Lions' tour takes place in Australia in June and July.
