Martinez is coming towards the end of his third season with the Latics and once again is embroiled in the thick of a Barclays Premier League relegation battle.
It might not have been exactly what the popular Spaniard had in mind when he turned down the opportunity to manage Aston Villa last summer, and reports have emerged suggesting he could leave the DW Stadium by mutual consent in the summer.
However, club sources are distancing themselves from such talk and, speaking to Sky Sports News ahead of Wednesday night's Premier League encounter with Manchester United, Whelan heaped praise on the man he brought back to Wigan from Swansea after a previous stint with the club.
"I will stick with Roberto Martinez for as long as I can," he said.
"I have said Roberto will go to one of the big clubs in Europe or the UK.
"He is a very high quality manager. He is a gentleman.
"He is 100% honest and I have great admiration for him."