The Angels selected Natera's contract from Triple-A Salt Lake on Friday.
Natera has pitched well out of the bullpen in Triple-A, where he has a 3.00 ERA, 1.33 WHIP and 44:18 K:BB across 30 innings. He'll now get a shot with the Angels, and Natera's first call to the mound will officially be his major-league debut. The move corresponds with the Angels designating right-hander Shaun Anderson for assignment.