Robertson had asked for $3.55 million in salary arbitration and the Yankees offered $2.85 million. He made $1,625,000 last season, when the 27-year-old right-hander was 2-7 with a 2.67 ERA in an injury-filled year. He was an All-Star in 2011, when he went 4-0 with a 1.08 ERA.
Robertson bruised his right foot in a spring training fall at home last March. He was given the closer's job after Mariano Rivera's season-ending knee injury in May, then went on the disabled list from mid-May until mid-June because of a strained left oblique. Rafael Soriano took over as closer for the rest of the season.
New York's payroll for 17 signed played on the 40-man roster is $197.3 million following Friday's deal with Robertson. The Yankees also owe Pittsburgh $8.5 million as part of last February's trade that sent pitcher A.J. Burnett to the Pirates.