Martinez missed Bayern's 2-0 victory over Wolfsburg on Friday night with a bruised toe but Heynckes has revealed that Martinez's recovery "looks really good".
He told reporters: "As things stand at the moment, it looks really good. He is available again.
"We have to see how the injury reacts, but I think it'll be OK."
Martinez has impressed in Germany since his £34m move from Athletic Bilbao during the summer.