Watson is a big fan of the former Celtic midfielder.
"The only mild criticism so far is that he's won the ball, travelled with it, then passed it.
"He doesn't need to travel with it, he just needs to pass it.
"He could potentially be one of the best around. If it was a choice of paying £12m for Ramirez or £12m for Wanyama, I'd pay £25m for Wanyama.
"They're not in the same ball park.