Melbourne AFL players Nathan Carroll and Brock McLean have reportedly been involved in a second fight inside a fortnight during a post-season holiday in Europe.

The Nine Network tonight reported McLean and Carroll were involved in a fight in Germany while attending Oktoberfest celebrations.

McLean, Carroll and teammate Jared Rivers were all involved in a fight at a nightclub on the Greek island of Ios earlier this month.

However, Melbourne could not confirm the latest incident, as a club spokeswoman said Demons officials were yet to speak to either McLean or Carroll.

"We're aware of the all the allegations," she said.

"But we have no other information yet.

"Until we have all the information we won't be making any comment."

McLean, Carroll and Rivers became involved in a fight with a group of Swedish tourists in Ios after Carroll was hit over the head with an object, possibly a bottle.

No charges were laid from that incident.

Melbourne chairman Paul Gardner said after the Greek incident he would be seeking a full explanation from the players, but said the club was unlikely to impose any sanctions.

McLean, 21, has played 61 games in four seasons with the Demons and has been touted as a future captain of the club.

Carroll, 26, has played 62 games in five seasons and Rivers, 22, has played 64 games in five seasons, but was sidelined for most of 2007 through injury.

AAP