It will be a homecoming for Heap, who grew up in Mesa and starred at Arizona State. Heap was released by Baltimore on Thursday after 10 seasons with the Ravens.
Heap is the Ravens' career leader in receiving touchdowns and is second in receptions and receiving yards. Last season, Heap had 40 catches for 599 yards and five touchdowns. He caught a franchise postseason record 10 passes for 108 yards against Kansas City.
Heap's 467 career receptions ranks fifth among tight ends and his 41 touchdown catches are fourth among all of those to play the position.