On the strength of four solo homers, the last a walkoff shot from Mark Trumbo off David Pauley, the Angels beat the Mariners 4-3 on Friday night.
Top prospect Mike Trout, hitting ninth in his major league debut, went 0-for-3.
The Angels got homers from Erick Aybar, Vernon Wells and Hank Conger before Trumbo ended the game in the ninth and made a winner of All-Star replacement Jordan Walden.
The homer was Trumbo’s 15th, leaving him one behind Washington’s Danny Espinosa for the major league lead among rookies. Atlanta’s Freddie Freeman is next with 13 homers.
Trout, who is going to need to make a big impression in a hurry in order to stick around after Peter Bourjos returns from a hamstring injury, flied out in the second, grounded out in the fifth and lined to center in the seventh.