Leyton Orient have signed former Doncaster Rovers midfielder Sean Thornton on a two-year deal.
Thornton has put pen to paper on a two-year deal
The 25-year-old, who passed a medical on Wednesday afternoon, joins the O's on a free transfer.
Boss Martin Ling told the club's website "We've been looking for a creative midfielder and Sean fits the bill perfectly.
"He will fit into our style of play and I believe we have signed a quality player." Ling added.
Irishman Thornton made 77 appearances for Doncaster since signing for the club for a fee of £175,000 from Sunderland.
Thornton was a regular for the Black Cats during their 2002/03 Premiership campaign and helped them win the Championship title two years later.
The midfielder is the sixth signing Ling has brought to Orient over the summer.