Tom Brady famously started his NFL career as a back-up to Drew Bledsoe - but once he got his shot, the rest is history.
Brady spent over 20 years as an NFL starter from 2001 until his retirement at the end of last season. During that time, he was backed up by a number of other quarterbacks who, ultimately, were competing with the hope of taking his job.
However, Brady’s behaviour towards them summed him up as the ultimate teammate and competitor which made him arguably the NFL’s greatest ever player.