The centre back, whose contract with Arsenal ran out at the end of June, moved to St James' Park today on a one-year contract.
It brings to a close Campbell's second spell under Arsène Wenger. His first tenure began in 2001 when he made the short journey across North London from Tottenham. He went on to be the defensive rock in the 2002 Double side and the Invincibles team that won the title without losing a game two years later.
He left in 2006 but returned in January this year, playing 14 games in the latter half of the campaign. In total, Campbell made 211 appearances for the Club, scoring a dozen goals. His most famous strike came in the 2006 Champions League Final when he headed home Thierry Henry's free-kick for 10-man Arsenal to take the lead.
Everyone at Arsenal Football Club would like to wish Sol the best of luck with Newcastle United.