Most frustrating MLB players of 2016

Oakland paid a hefty price to acquire Alonso from San Diego this offseason, sending Drew Pomeranz. While Pomeranz has become the Padres' ace, Alonso has floundered, hitting just .245-1-15 through 62 games.

Anderson has certainly shown flashes but just can't seem to find consistency. While he has an excellent strikeout-to-walk ratio above 3.00, Anderson is among the league leaders in home runs allowed with 14 in 71.1 innings, pushing his ERA to 4.42.

Buchholz has been a frustrating pitcher his entire career between inconsistent performance and injuries. That continues in 2016. He was removed from Boston's rotation and has an ERA above 6.00 in a walk year.

Arguably the best prospect in baseball, Buxton hasn't looked good in the majors. In 228 at-bats between last season and early this year, he's hit just .211-3-13 with 10/86 BB/K. He continues to look overmatched.

Cashner has shown flashes of an ace during his career, but injuries and poor control have made him a very frustrating pitcher in San Diego recently. After losing 16 games last season, Cashner has a 4.75 ERA and is now on the DL with a neck injury.

The Mets catcher hasn't been able to stay healthy during his career and could force New York to think about finding a different option at catcher long term. He played only 13 games this season before suffering a shoulder injury.

The Astros paid a steep price to acquire Gomez at the trade deadline last year, but he hasn't played well in Houston. Since joining the club, the former star outfielder is hitting only .219-7-24 with a .620 OPS in 87 games.

Gordon had been an extremely consistent player prior to 2015 but suffered injuries last year and this season. Prior to his wrist injury this year, he was hitting just .211.

Grichuk was handed a big opportunity as the Cardinals' starting center fielder this year, but he's struggled at the plate. After a breakout last season, he's hitting only .209-8-27 in 61 games.

Hamilton has shown some improvement at the plate this season but still not enough to be a viable leadoff man. The speedster has a poor .308 on-base percentage and is now on the DL with concussion issues.

The Yankees haven't received much for the four-year, $52 million contract they gave Headley prior to last season. The former 31 home run hitter with San Diego hit only 11 home runs last season and has just three this year.

Jimenez rebounded to be one of Baltimore's top starters last season, but he's reverted back to mediocrity this season. The former Rockies ace was demoted to the bullpen after posting a 6.89 ERA in 13 starts.

Coming off an AL Cy Young Award win, Keuchel is just 3-9 with a 5.54 ERA this season. While he continues to miss bats, Keuchel's struggles are one of the reasons Houston has regressed this season.

The high hopes for Lawrie continue to turn to frustration. He had a career-high 16 home runs with Oakland last season, though he also struggled with a .706 OPS. His OPS is down to .697 in 65 games this year.

McCullers pitched like an ace when he was called up by the Astros last season. He started this season on the DL with a shoulder injury and has struggled to avoid walks since his return. He has a 4.54 ERA and 6.1 walks per nine innings through six starts.

Mesoraco had a breakout in 2014 but missed most of last season with a hip injury. He played only 16 games this year before suffering a season-ending shoulder injury.

Nicasio won a rotation spot with an incredible spring, but he's struggled to find consistency this season. He has a 5.34 ERA in 59 innings but also has more than one strikeout per inning.

One of the most consistent and durable players in the game through 2014, Pence hasn't been able to stay healthy over the last two seasons. He played only 52 games last season and is now on the DL again.

Maybe Pineda's skill set just isn't a fit for Yankee Stadium. The right-hander had a 4.37 ERA last season despite an elite 7.43 strikeout-to-walk ratio. This year his ERA is near 6.00 with 12 homers allowed in 72 innings.

Puig's performance continues to decline. He had a .758 OPS and played only 79 games last season. This year he has a poor .643 OPS and has spent more time on the DL.

Rodon shows ace upside with a great fastball and wipeout slider, but the results haven't been there yet. He's shown flashes but has a 4.28 ERA and only two wins through 12 starts.

Santana missed much of last season due to a PEDs suspension and has struggled this year, like most of his teammates in Minnesota. He's just 1-7 with a 5.10 ERA in 12 starts.

Soler has been extremely streaky and injury-prone during his brief MLB career. His .723 OPS last season was a disappointment, and he's been worse this year despite getting a shot at regular playing time following Kyle Schwarber's season-ending injury.

Injuries have followed Tulowitzki for the majority of his career, and that continues this season. He's missed time with a quad injury and hit only .204 prior to the injury.

Ventura has mostly struggled on the mound, with an ERA near 5.00 and terrible overall command. He's also frustrated the Royals with his behavior, inciting a brawl with the Orioles earlier this season.