Complex sentence: Henry, who was rumored to be considering a move to Barcelona, signed a four-year contract extension with Arsenal on May 19,2006 before signing for Barcelona on Friday 24th June 2007 where he now wears the number 14 shirt.
Split into simpler sentences: Henry, who was rumored to be considering a move to Barcelona, signed a four-year contract extension with Arsenal on May 19,2006. He later signed for Barcelona on Friday 24th June 2007 where he now wears the number 14 shirt.