Eunan O'Kane hasn't played for Leeds United in close to a year.
The Whites are currently in the race for promotion from the Championship into the Premier League.
Leeds midfielder was injured at Luton Town.
Bielsa's Leeds have a number of players on the treatment table, but one on loan has suffered a horrific injury.
The Leeds United-owned midfielder is currently on loan with Luton Town.
Leeds United fans react to Eunan O'Kane's setback on Twitter.
Leeds United loanee Eunan O'Kane has suffered a season ending injury.
Leeds United-owned Eunan O'Kane has suffered a major injury.
Eunan O'Kane left the Championship and Leeds United for a spell in League One with Luton Town on transfer deadline day.
Eunan O'Kane has left Leeds United on a season-long loan.
Liverpool recently secured the services of highly-rated Fulham youngster Harvey Elliott.
Liverpool reportedly want to sign the South American free agent.
Celtic are reportedly keen to sign Basel defender Silvan Widmer.
The former Bolton Wanderers goalkeeper has joined Steve Bruce's side.
The Rangers academy striker was seemingly not part of Steven Gerrard's plans at Ibrox.
Leeds United sold Pontus Jansson to Brentford earlier this summer, in one of the most surprising transfer moves of the window so far.
Everton boss Marco Silva is said to be keen on both Wilfried Zaha and Moise Kean.
Tottenham Hotspur reportedly 'consider' a move for the Lyon star.
Tottenham Hotspur were beaten by Liverpool in the Champions League final in their last competitive match.
Real Madrid are reportedly keen on signing the Tottenham Hotspur star.