Fans let Giancarlo Stanton know how they feel after brutal day

Yankee Stadium was supposed to set up Giancarlo Stanton to produce career-best power numbers. Instead, the ballpark — or, to be more precise, his struggle there — is holding the hulking slugger back. Stanton’s problems in The Bronx continued Sunday in a 3-1 victory over the Angels. He struck out four times — the third…