 Merrill was a first-round draft choice of the Toronto Rock in 2002, and after four seasons with the Rock, was chosen first overall by the Boston Blazers in the 2008 expansion draft.However, following the cancellation and subsequent reinstatement of the 2008 season, the Blazers, along with the Arizona Sting, announced that they would not participate in the 2008 season.A dispersal draft was held, and Merrill was chosen second overall by the Titans.