Sunderland's players have been put through their paces in a rigorous first day of pre-season training at the Academy of Light. 

Donning the club's new adidas training wear, Jack Ross and his staff led a fitness-fuelled session at the training ground as preparations for the 2019-20 campaign started.

>>>> Check out our training wear in full. 

Click play in the video panel above to check out the first day of training.

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