Rangers have completed the transfer of Fulham midfielder Steven Davis, who returns to the club after a successful loan period last season. The Northern Ireland midfielder remained in Glasgow to finalise the formalities of the switch following his country's goalless draw with Scotland at Hampden. Davis, 23, had been a target of manager Walter Smith all summer after five months at Ibrox during the latter part of the 2007/8 season, where he helped the Glasgow giants win two domestic cup competitions last season as they came close to winning an incredible quadruple. Rangers agreed a fee with Fulham - believed to be in the region of £3million and Davis has signed a four-year deal. The former Aston Villa man is Smith's fourth midfield signing in little over a week following the arrivals of Aaron Niguez Esclapez, Pedro Mendes and Maurice Edu. The club will hope the recent spending spree will help appease fans angered by the £7.8million sale of star defender Carlos Cuellar to Villa.