We've got a fantastic prize to give away - a brand-new Arsenal shirt signed by our brand-new striker!

Olivier Giroud agreed a move to Emirates Stadium this week and was pictured in his Arsenal colours during a photoshoot at the training ground.

Before he left London Colney the France international signed a home shirt and this is how YOU could win it:

Using the hashtag #WelcomeOlivier, tweet your welcome message for Arsenal's new signing before 5pm (UK time) on Wednesday, June 27.

Please note, this competition has now closed.

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26 Jun 2012