Middlesbrough's hopeful about hamstrung McDonald
The Australian striker had to be replaced in the 67th minute of Saturday's 4-2 win over Hull City after scoring a hat-trick and was forced out of Monday's victory at home over Coventry City because of the problem.
"I'm not ruling him out, normally with a hamstring you rule a player out for a few weeks," Mowbray told BBC Tees.
"Scott's desperate to get back, we hope he can still have some involvement.
"If he isn't able to come back, it's not a bad way for him to end the season with his hat-trick."