Chelsea manager Frank Lampard admits it may not be the last time Mason Mount captains his team.
Mount was the surprise skipper as the Blues bested Luton in the FA Cup fourth round.
Tammy Abraham netted a hat trick, helping Chelsea to a much needed win.
Mount is only 22 and became the youngest player to captain the club since John Terry at 21.
"I only told him quickly in the dressing room because the armband was already hanging on his shirt, so I saw him clock it. I went over to him and I kept it brief," Lampard told the club's website.
"Listen, he deserves it. He is playing like a captain and he played like a captain recently and all season. He loves Chelsea and came through the academy.
"The club captain is Azpilicueta and he was not playing today but he is a great role model for Mason. He feels the club, has desire for the club and tries to affect things other than himself.
"You can't always ask a kid to do that when they are coming through because it is a lot on their shoulders but through the maturity of his performance last season but this season in particular, I have seen that he has gone up a level in his game.
"He dropped deeper today and he showed the strength and quality in his passing, but I thought it was very apt to give him the captaincy. Like I said, it will be one for the future for him with the hierarchy and how it is. But Mason is going to be a captain many times for the club going forward just not regularly right now."
