To say that Gary Sanchez and Greg Bird had a disappointing opening series would be a fairly strong understatement. The duo combined to bat .077/.143/.115 against the Rays this week, and by fWAR’s reckoning they’ve already cost the Yankees -0.4 wins. It’s a less than ideal start to the season, to say the least – particularly for two players that are being counted on to be cornerstones of the team’s offense this year. And it feels more surprising than might normally be the case, given Sanchez’s utter dominance in August and September last year, and Bird’s Spring Training performance (lest we forget that he was arguably the best hitter in baseball in March).