Help with call

[MAC Crew]

offensive player get fouled going for lay up. The offensive and defensive player get into a fight and are ejected. Who shoots the free throws for the original foul now that the player that was fouled is no longer in the game? I would think the player that replaces the ejected player would shoot the foul shots but not 100% sure. Thanks

[ref18]

The player who replaces the ejected player gets to shoot.

[tjones1]

Sub shoots.