Kansas City Chiefs left tackle Eric Fisher will miss 2-3 weeks with a high ankle sprain.
Fisher had an MRI exam on Monday after being carted off the field. The Chiefs already lost right tackle James Allen (knee) to injury this preseason.
Donald Stephenson will step in for Fisher, the No. 1 overall pick in 2013 who was second on the team in total snaps last season.
Allen sprained his MCL in the preseason opener.