As with any baseball season, there have been plenty of surprises, both good and bad, as the sesaon has surpassed the halfway point. Let’s take a look at my biggest individual disappointments on the field so far this season.

Shelby Miller of the Arizona Diamondbacks tops my list. Although he was just 6-17 for the Braves last season, he posted an ERA of 3.02 with 171 strikeouts in 205 1/3 innings. He posted an ERA of 3.27. The wheels have come off this season for Miller, sho has a dreadful 2-9 record and an astronomical 7.14 ERA. He’s allowed 87 hits and 13 home runs in 69 1/3 innings and will need a stellar final two plus months of the season to get back to respectability.

Prince Fielder is the owner of 319 Major League home runs and .283 batting average. He had a stretch of six consecutive 30-plus home run sesaons from 2007-2012. While those days are likely gone, Fielder had an excellent .305 batting average with 23 home runs last season. He’s struggled mightily in his third season with the Rangers. Through 89 games this season, he is hitting just .212 with eight home runs, a .334 slugging percentage and an anemic .626 OPS.

Mark Teixeira has an impressive resume that includes 401 home runs, 1274 RBI and nine seasons of 30 or more home runs. After missing all but 15 games in 2013 and struggling in 2014 Teixeira bounced back to hit 31 home runs and post a .905 OPS in 2015. Teixeira has been a huge disappointment this season, as his batting average has plummeted to a career-low .186 with just seven home runs in 226 at-bats. The question is whether this is only a slump or the beginning of the end for the 36-year old veteran.

Sonny Gray looked poised to be one of the best pitchers in the league in 2016 following a 28-17 record with a 2.91 ERA over the past two seasons. Things haven’t turned out as planned through Gray’s first 17 starts in 2016. He’s posted a 4-8 record with a high 5.12 ERA . The biggest culprit has been the long ball, allowing 13 in 96 2/3 innings after only surrendering 17 in 208 last season. The A’s can only hope that Gray finishes the final couple months strong, gaining some confidence heading into the off season.