London - Arsenal great Thierry Henry has returned to training with the Premiership side in a bid to maintain fitness ahead of the start of the Major League Soccer season in the United States.Henry, who plays for the New York Red Bulls in MLS, scored 226 goals for Arsenal in a successful spell with the London club between 1999 and 2007.The 33-year-old France forward left Arsenal to join Barcelona in 2007 before signing for New York in July last year."Thierry Henry is back at Arsenal," a statement on Arsenal's official website read."The Gunners legend returned to London Colney on Monday to train with Arsene Wenger's squad. The short-term arrangement will help Henry maintain his fitness ahead of the new MLS campaign, which begins in March."Henry joined the New York Red Bulls last year and helped them reach the playoffs, where they lost on aggregate to San Jose Earthquakes in November.