Melbourne, Dec 23 (IANS): Shane Watson will be monitored for concussion after selector Mark Waugh has revealed that the allrounder was "off-colour" after he was struck by a bouncer while batting in the nets Tuesday ahead of the third Test against India, which starts here on Boxing Day.

Waugh said Watson was "pretty much OK to start off with, then he felt off-colour back in his hotel room. So I believe he's going to have a few tests overnight and we'll see how he comes up in the morning so hopefully he'll be OK to play in the Test match," Waugh was quoted as saying by the Sydney Morning Herald Tuesday.

He said the selectors would wait on the results of the tests before deciding whether to call up another allrounder or batsman to the squad.

Watson was hit by a James Pattinson delivery at a practice session. With memories of the late batsman Phillip Hughes' untimely death while batting, also by a bouncer, still fresh in everyone's memory, both were visibly shaken from the incident and were unable to continue the nets session, reports the Sydney Morning Herald.