Harlequins director of rugby Conor O'Shea praised openside flanker Chris Robshaw after his performance in victory over Bath on Saturday.
Robshaw returned to the side for the first time since a disappointing Rugby World Cup campaign with England, helping Quins win at the Rec.
And O'Shea was impressed with his effort in the 38-28 victory.
"I thought he really grew into the game," he told Premiership Rugby. "He was blowing a bit but he was outstanding.
"He will prove himself again as the best back row in England. I have no doubt about that. Whether people want to make him captain or not, I don't care. He is an unbelievable rugby player.
"It's been great to have our England lads back. We didn't parachute them in straight away, apart from Mike Brown playing at Leicester last week."
Meanwhile, Bath head coach Mike Ford said his side's second successive loss could be a "wake-up call" as they gave away costly penalties that Nick Evans converted into points.
"We're totally gutted about the performance, especially the discipline side of it," said Ford.
"They took their opportunities but I was disappointed that we compounded things. We conceded two tries – but eight kickable penalties. We couldn't get out of the rut.
"It's a good wake-up call, if we needed one – we obviously did. Every one of us – coaches included – need to go away and think about our role in this defeat today and see how we can get better."