Owen Hargreaves has launched a bid to prove his fitness - by posting daily exercise videos on YouTube.
The 30-year-old midfielder is currently without a club after being released by Manchester United in May.
Hargreaves was plagued by injuries during his four years at Old Trafford, making only 39 appearances after signing from Bayern Munich for £17m.
He impressed United after being one of England's strongest performers at the 2006 World Cup in Germany.
The Canadian-born midfielder won four German titles and a Champions League winners' medal at Bayern Munich.