Brisbane has confirmed that Allen Christensen will be sidelined for eight to 10 weeks after breaking his collarbone at training late last week.

It is the same collarbone the former Geelong player broke in round 11 last year against Carlton.

Jono Freeman, who played four games last season, has undergone surgery to repair a fractured cheekbone which was sustained at training and will miss four to six weeks.

BRISBANE, AUSTRALIA - JULY 17: Josh Schache of the Lions celebrates kicking a goal during the 2016 AFL Round 17 match between the Brisbane Lions and the GWS Giants at The Gabba on July 17, 2016 in Brisbane, Australia. (Photo by Matt Roberts/AFL Media)

Meanwhile, the news is better for Josh Schache, who suffered a low-grade medial ligament strain at training. Schache will miss the remainder of the JLT Community Series, but is expected to be available for round one.