Blues ruckman Matthew Kreuzer underwent surgery earlier in the week, according to a report byย AFL.com.au'sย Mitch Cleary.

It is understood that it was just a knee cleanout and Carlton expect Kreuzer to be available round one.

Carlton Director of High Performance Andrew Russell clarified the procedure on Sunday morning.

โ€œMatthew Kreuzer had minor surgery on his knee this week,โ€ he told the Blues website.

โ€œWe donโ€™t expect it to be a major interruption and weโ€™re really confident heโ€™s going to get back to doing some game play late in the pre-season and then be ready for Round 1.

โ€œWeโ€™re fortunate that heโ€™s had an excellent preparation to this point and hasnโ€™t missed a beat at all so we expect him to be in very good shape at the start of the season.โ€

Kreuzer joins Sam Docherty,ย Mitch McGovern, Will Setterfield, Darcy Lang, Jarrod Pickett and Liam Jones as Carlton players to have suffered injury setbacks over the pre-season.