His penchant to swap players has anointed Toronto head coach Mo Johnston with the nickname "Trader Mo," yet his trigger-finger frenzy of jettisoning players he's recently acquired is more "Quick Draw McGraw."

Todd Dunivant has been reunited with Johnston, sort of, via trade with Red Bull New York. Kevin Goldthwaite, acquired from Houston in April for Richard Mulrooney, is on the move again in exchange.

The switch of left backs comes exactly one year after Johnston, on his final day as coach of the Red Bulls, got Dunivant in a trade from Los Angeles. The much traveled Dunivant, who played midfield at Stanford before being converted to left back, has been with San Jose, Los Angeles, Red Bull New York and now Toronto in the past three seasons.

Another player Johnston tried to acquire when he was in New York has finally landed at his doorstep. Trinidad & Tobago striker Collin Samuel comes to MLS after playing out his contract at Dundee United, for which he scored 14 goals in 131 appearances. He chose to leave Dundee United and go on trial with Toronto rather than sign a new contract for a lower salary in Scotland.

Samuel, 25, takes the last senior international slot on the TFC roster. He played for T&T against Sweden last summer at the World Cup. He doesn't figure to replace Danny Dichio or Jeff Cunningham in the starting lineup but his ability to play wide could earn him a long look at left mid. Having traded striker Conor Casey after a brief courtship, the only other forward Johnston has on his roster is Canadian under-20 Andrea Lombardo.