Sport News Update, what you need to know.

AFL – Hawthorn admit they have no idea how long they will be without two-time AFL premiership coach Alastair Clarkson after he was admitted to hospital on Monday night and diagnosed with the serious condition Guillain-Barre syndrome.

CYCLING – Cadel Evans’ hopes of winning the Giro d’Italia suffered a blow on a gruelling 16th stage, the Aussie dropping to third in the overall standings after Colombian climber Nairo Quintana claimed the stage victory and race leader’s jersey.

TENNIS – It was a mixed day for the Aussies on the Roland Garros clay on Tuesday, with Marinko Matosevic securing his first grand slam win at the 13th attempt as compatriots Lleyton Hewitt, Bernard Tomic and Matt Ebden all lost.

RUGBY LEAGUE – Brisbane reportedly face an NRL investigation over salary cap irregularities, the development coming as football manager Andrew Gee resigned to end his 25-year association with the club.