Khloe Kardashian's ex Tristan Thomspon is a controversial figure to many, having been embroiled in a cheating scandal that saw Khloe give him the boot.
Rumours have been swirling of a renewed romance between Khloe and Tristan after they told they were isolating together so they could co-parent their one-year old-daughter, True.
While fans are divided on the issue, Tristan is drowning out the aggro with some brutal gym sessions that have taken him from a skinny teen and basketball hopeful to acclaimed athlete and titan of the court.
Photos from Tristan's high school days show him - to be fair - still looking in pretty good shape. He's got decent muscle definition in his arms and he's clearly been putting in the hours.
Read more on mirror.co.uk