McDonald netted his tenth and eleventh goals of the season in yesterday's 2-1 victory over Kilmarnock and Strachan said: "After a couple of days' training I expected that, and he's working well with the big fella (Vennegoor of Hesselink).
"The big fella took a lot of knocks today without complaining. He gets barged in the back, and knocked down, and he just gets up and abides by the referee's decision, which for him is excellent."
Strachan said: "I felt we got caught up in the basketball-type football for a while - back and forth.
"I was saying to the players, 'When you get it back, have some more touches'."