Was that really the issue last night, though?
Donovan was scratch at plus/minus. He finished even. He had 13 points, 16 rebounds, three steals and two assists.
The problem was that he was 6-for-14. He missed numerous layups before Tiago got on him coming off the court and they tossed him a couple of lobs and then he realized he was being guarded by midgets compared to him and needed to dunk everything at the rim. He missed four shots inside 4 feet in his first nine minutes. Three of those misses were rebounded by Toronto.
If he flushes those, he's at or close to a 20-16 game and he's +6.
I'd say he matched up very well. He isn't just playing the defensive side of the court the whole game. The other team has to guard him half the time, too.