Defenseman Ryan Lindgren, who fought Scott Mayfield in the first period of the 6-4 win after Mayfield’s hit on Filip Chytil had left the Czech center on all fours in center ice, will be out an extended period with an upper-body injury, the Rangers announced Wednesday.

The New York Rangers find themselves in a tough situation as Ryan Lindgren is out week-to-week with an upper-body injury. In Tuesday night’s preseason game, Lindgren fought Scott Mayfield in retaliation for his hit on Filip Chytil, and that’s when he supposedly suffered this injury.

The Rangers open the season on the road against the Penguins on Oct. 9. The Rangers may have to start the season without one of their top-four defensemen. Ryan Lindgren is expected to be sidelined for at least a few weeks with an upper-body injury,