The former Leeds forward was left unimpressed after a 1-1 draw with MK Dons.
United trailed the Milton Keynes outfit until late on, when an own goal spared their blushes and earned them a point.
But Whelan was frustrated with what he described as one of the 'poorest performances' he'd seen in a long time. And the big problem the pundit singled out was the players - and not Steve Evans' formation or tactics.
Whelan told the BBC after the 1-1 stalemate: "Leeds have got out of jail with an own goal.
"It's one of the poorest performances I've seen in a long time; sloppy, negative and, without the help from the own goal, I don’t think they would have scored today.
"I don’t think formation had anything to do with it. I just think the players never got going. They looked tired."
It's now three draws in a row for Leeds and, considering United only just snuck a point, fan criticism is warranted.
The Whites delivered a very uninspiring display indeed and Whelan's damning verdict is in no way over the top.
That said, looking at the result over the performance, Leeds are now unbeaten in seven Championship games and there are certainly positives to work with.
Next up for Leeds is an FA Cup Yorkshire derby against Rotherham United, before they travel to Ipswich Town in the league.