Swansea winger Scott Sinclair is preparing for the biggest match of his career on Monday safe in the knowledge he made the right decision to leave Chelsea last summer - and they made a mistake in letting him go.

Sinclair will walk out at Wembley against Reading in the npower Championship play-off final aiming to cap a stunning first full season in the professional game, but the 22-year-old admits he had to leave Stamford Bridge to prove his worth and obtain the one thing it is obvious he so clearly craves - first-team football.

"I think this season I've shown Chelsea I think they made a mistake to let me go at such a young age," said a quietly spoken Sinclair.

"You're not breaking into Chelsea as a 20, 21-year-old, you have to be an established player to be playing at that level.

"The pressures are that you've got to win trophies and win games, you haven't got time to make a mistake in the game as a Chelsea player. So the development at Chelsea is much more different. As a player you need to make mistakes to learn from it."

Sinclair joined Chelsea as a highly-rated youngster in 2005 but was only handed just over a dozen appearances in total, instead learning his trade during a series of loan spells at Plymouth, QPR, Charlton, Crystal Palace, Birmingham and Wigan.

That all changed last summer when Swans boss Brendan Rodgers, who worked with Sinclair during his days under Jose Mourinho, prized him away to south Wales for an initial £500,000, a deal which could break the £1million mark for the first time in City's history.

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