Both players were left out of Crystal Palace's 4-1 defeat to Southampton on the last day of the season.
Crystal Palace boss Alan Pardew admits midfielder Yohan Cabaye is his "biggest concern" ahead of his side's FA Cup final with Manchester United next weekend, while there are also fears over the fitness of striker Connor Wickham.
The former Newcastle United boss rested several key players during his side's 4-1 defeat to Southampton on the last day of the season, including Scott Dann and Wilfried Zaha.
Welsh midfield anchorman Joe Ledley has already been ruled out of the Wembley showpiece, but Pardew is concerned there may yet be other injury concerns that could influence how he decides on his starting eleven.
After the game, Pardew told the club's official website: "Of course we protected some today but we do have some concerns about a couple. We rested Scott Dann, but the biggest concern is Yohan Cabaye although I think he will be ok and Connor Wickham has rolled his ankle but Zaha and Bolasie should be fine. My experience though is as the final gets nearer the injuries certainly start to clear up."
Sunday's defeat at St Mary's represented a disappointing end to the Eagles' season, although Pardew is adamant his side were hindered by the performance of referee Michael Oliver, adding that Graziano Pelle's second-half strike should not have stood, while also questioning the penalty given against his team 15 minutes from time.
"I was a bit disappointed with the referee's decisions," he added. "The Pelle goal was a definite push and he actually looks round at the ref as if to say 'Did you see it?' And he should have seen it, but he didn't.
"The penalty decision again, which is outside the box, and the linesman overruled him. His gut feeling is it was outside, he stood on the edge of the box for a little while, and the linesman gave that, and he got it wrong.
"We had a lot of chances today from an away side, we did ok but they are in good form and were strong and deserved the result."