With every passing week, it seems that BT Sport is providing some of the best insight into modern football going.Fronted by presenter Jake Humphries, Premier League tonight features a variety of recently retired pros who offer fascinating opinions and anecdotes on the game.The likes of Frank Lampard, Steven Gerrard, Rio Ferdinand, Michael Owen, Steve McManaman, Owen Hargreaves and Jermaine Jenas have all appeared on the show this season and fans love their candid stories.However, this week, it was Jenas' turn to open up on the show.The former Newcastle and Tottenham midfielder made 21 appearances for England but after rupturing his anterior cruciate ligament whilst playing for Queens Park Rangers, Jenas was forced to retire at 31.When Humpries asked why he failed to live up to his potential, Jenas noted that coming through with England's 'golden generation' did not help and injuries also played their part.Watch the video below for Jenas' full explanation:

However, one part of Jenas' answer may rub Newcastle United fans the wrong way - it certainly did Alan Shearer.

Jenas said: "Training with England, my levels went up. And then, I could almost feel them dwindle as the weeks went on. Training with England was at such an intense level - everyone wants to win, everyone wants to be in the team, and when I came back to Newcastle, I'd be up here [gestures above his head] - miles ahead of everybody.

"Then, literally, because the demand wasn't as high at Newcastle as it was at England, my standards would drop and drop and drop throughout the weeks until I was back to Newcastle level."

Newcastle level? Jenas played with some decent players during his time at St James' Park, including club legend and all-time Premier League goalscorer, Shearer. Plenty of people would love to be at his level!

Unsurprisingly, Shearer had something to say about Jenas' comments:

To be fair, Jenas did ultimately blame himself for not making the most of his ability and seemed to believe that if he had been playing at a top four club, he could have proved his worth and been an England regular.

Still, he would of had to actually earn that move, first.