Jobe Watson has been ruled out of tomorrow night’s blockbuster game against Collingwood following an ankle injury sustained against Carlton last week.

Despite completing most of today's training session, Matthew Knights said he would not risk the midfielder against the Magpies, electing to rest the 24-year-old until next week’s match against Sydney.

Adam McPhee will come into the side as Watson’s replacement this week after overcoming calf soreness.