Fletcher top scored in each of his two seasons at Wolves, which occurred during the Molineux side's previous top-flight spell at the start of this decade.
But asked to name the top players from his time there, the Scotland striker gave an unexpected response.
"When I first went, Dave Jones," Fletcher told Open Goal. "He’s here now (at Sheffield Wednesday). Does nay give the ball away!
"We were in yesterday (the day before the interview was conducted), the boys that played, and we did a cool-down. So the boys that never played were playing five-os (five-a-sides) the next day.
"We were all sat, lying on the grass watching them and he was the best player in training yesterday, just bopping the ball about.
"And I was saying to the lads who were lying next to me, I was like: listen, you see when he was at Wolves, obviously, he was in his prime and that. He never gave the ball away - at all, ever! And obviously, in the Premier League.
"I was saying to them, the Championship’s hectic. If you take a touch somebody’s (wraps his palm around his fist). In the Premier League, you’ve got a bit more time on the ball, you know what I mean? They kind of make you make the mistakes. You’ll give the ball away with the pass and they’ll punish you. He was on the ball, he was just keeping it.
"He was just frightening for us, my first year at Wolves anyway. You could tell (he was at Manchester United)."
Fletcher and Jones were reunited at Sheffield Wednesday in the 2016 summer transfer window.
Unlike his teammate, however, the latter found his game time limited after Carlos Carvalhal's departure as manager the following December.
Now 34, Jones was one of six senior players whose contracts are not being renewed by the new Owls boss, Steve Bruce, along with Daniel Pudil, Almen Abdi, George Boyd, Gary Hooper and Marco Matias.
Another of the pair's Wolves colleagues, Sam Winnall, remains on Sheffield Wednesday's books.
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