Leeds United manager Marcelo Bielsa has sent Whites into a social media frenzy after being pictured wearing his club tracksuit to the club's 100th birthday celebrations.
The function held at Elland Road's Centenary Pavilion on Thursday night was believed to be a black tie event, but Bielsa clearly had other ideas as he was pictured alongside Andrea Radrizzani sporting his training and matchday attire.
This is the umpteenth time the Whites boss has been pictured wearing his club tracksuit in public, after he was snapped walking down an aisle in what was thought to be the Wetherby branch of Morrisons back in September.

Last night's function concluded an action-packed day of events to celebrate the club's centenary. The celebrations started with a ceremony at the site where it all began, as Radrizzani unveiled a plaque at Salem Chapel to commemorate the club's birth, before a Civic Reception then took place, where the legendary Don Revie side were granted the freedom of the city.
The club then revealed the design for their special centenary shirt, as well as announcing plans to boost the Elland Road capacity to 50,000.
Bielsa's side return to Championship action against Birmingham City on Saturday afternoon, with the Whites two points off top spot.
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