McDonald tore a muscle at the top of his right biceps when he sacked Matt Schaub during the third quarter of Sunday's 34-3 victory over the Houston Texans,Nike Just Do It Scarpe Uomo. He was told he could play with the injury as long as he can stand it.
"It's going to be sore but I should be fine," McDonald said. "I've got all my strength and I'm fine with that."
