Some are among the highest profile names in football - both at home and on the continent.
While others are slightly less well known when it comes to their standings in the game.
But all these men have something in common - they spent periods at Pompey trying to earn themselves deals.
We’ve dug up a far-reaching list of players to appear in friendlies or rock up at the Blues training ground over the years.
1. From left: Duane Holmes, Luis Boa Morte and Ben Davies
From left: Duane Holmes, Luis Boa Morte and Ben Davies | Getty Images
2. Connor Randall
Spent time on trial under Paul Cook after being given the go-ahead by Liverpool. Currently plays for Ross County. | The News
3. Amdy Faye
The other story Harry Redknapp's bulldog Rosie is renowned for. 'Andy Henry' came on trial in 2003 and was 'kidnapped' by Redknapp until he signed a deal. | EMPICS
4. Geovanni
Former Benfica and Barcelona man scored at Yeovil but signed for Manchester City in 2007.
| EMPICS Sport