The man Yankees fans regard as the Burglar of Seattle, better known as Jack Zduriencik, was not wearing a mask or a striped shirt when he arrived at Yankee Stadium, and he was not carrying Jesus Montero around in a white sack over his shoulder. Still, there are many who believe that he robbed the Yankees.

Zduriencik is the Seattle Mariners’ general manager, and one of the biggest deals he made in the last year was trading Michael Pineda and Jose Campos to the Yankees for Montero and Hector Noesi on Jan. 23.

Montero was the Yankees’ best hitting prospect, a player they had been cultivating for years. He showed tantalizing promise in his brief exposure to the big leagues last September, when he hit four home runs in 18 games. He showed that promise again Friday in his return to Yankee Stadium, hitting his fifth home run of this season in the Mariners’ 6-2 loss.

Pineda was a hard-throwing pitching prospect the Mariners had carefully developed without incident. He made the All-Star team last season as a rookie.