GWS draftee Max Gruzewski will undergo surgery after dislocating his knee during pre-season training, according to the Herald Sun.
The number 22 pick in the 2022 National Draft will miss several months and faces a delayed start to his first season in the league.
He suffered an injury to the same knee earlier in the year.
Gruzewski was selected out of the Oakleigh Chargers and was among a number of Giants draftees including Aaron Cadman, Harry Rowston, Darcy Jones and Toby McMullin.
The 193cm versatile utility has played as a key defender and a key forward at under 18 level.