Álvarez from third base to first base in order to keep his offensive capabilities in the lineup. On August 18, Álvarez made his first Major League appearance at first base against the Atlanta Braves at PNC Park. The Pirates announced on September 10 that Alvarez had been diagnosed with a stress fracture in his left foot stemming from an injury he sustained in-game on August 26. He missed the remainder of the regular season, and was left off of the Wild Card Game roster against the San Francisco Giants. For the season, he batted .231/.312/.405, and for the third season in a row led all NL players in errors, with 25 at third base. 2015 In the 2015 season, Álvarez transitioned to first base full-time. Álvarez played 150 games in 2015, hitting .243/.318/.469 with 27 home runs and 77 RBIs. However, he also made 23 errors in 124 games at first base, leading the National League, including a major-league-leading 19 fielding errors. On December 2, 2015, Álvarez was non-tendered by the Pirates, making him a free agent for the first time in his career. Baltimore Orioles 2016 On March 10, 2016, the Baltimore Orioles signed Álvarez to a one-year, $5.75 million deal, which also included performance bonuses between $1.25 million and $1.5 million. Álvarez got off to a slow start with the O's, as he was hitless in his first 12 at-bats, while hitting only .182 over his first 15 games. His struggles continued, as he hit just .194 through the end of May while playing in 34 games. In June, Álvarez raised his average up to .230. At the All-Star break, he slashed .249/.320/.462 while hitting nine homers and driving in 26 runs. On September 2 he hit his 20th home run of the season, becoming the sixth Oriole to hit 20+ homers on the year. It was his second career home run to land on Eutaw Street. For the season, he batted .249/.322/.504. 2017 In 2017, Álvarez only had 32 at-bats with the Orioles, and made four errors in nine chances at third base. With their AAA affiliate, the Norfolk Tides, he batted .239/.294/.442. 2018 On February 25, 2018, Álvarez re-signed with the Orioles on a minor league contract. He had his contract purchased on March 29. On June 19, he was designated for assignment; at the time, his slash line was .180/.283/.414. Alvarez declared free agency on