De Rosario to Celtic… To be or not to be? 27 Dec 2010 Celtic manager Neil Lennon was quoted in The Telegraph today, confirming that Toronto FC’s all-time leading scorer, Dwayne De Rosario, could be in Glasgow for a trial — and might sign with the Hoops in time for the next Old Firm derby against Rangers. De Rosario, TFC’s leading scorer in 2010, could join former Arsenal star and MLS Designated Player Freddie Ljungberg, who is already in Glasgow.