The Oakland A's agreed to terms with right-handed pitcher Henderson Alvarez on a one-year contract, the club announced today. To clear a spot on the 40-man roster, the A's designated right-handed pitcher Arnold Leon for assignment.
Alvarez went 0-4 with a 6.45 ERA in four starts with Miami last year in a season shortened by two stints on the disabled list. He was on the Marlins Opening Day roster and made two starts before going on the DL April 13 with an inflamed right shoulder. The 25-year-old right-hander was reinstated May 17 and made two more starts before returning to the DL May 23 with the shoulder injury. Alvarez began a rehab assignment with Single-A Jupiter July 15 but that was halted July 22 and he missed the remainder of the season after undergoing surgery on his shoulder July 28.
Alvarez is 27-34 with 3.80 ERA in 92 career starts over five seasons with Toronto and Miami. He made his Major League debut with the Blue Jays in 2011 and went 10-17 with a 4.52 ERA in 41 starts over two seasons before he was dealt to the Marlins in a 12-player trade on Nov. 19, 2012. The native of Venezuela went 17-17 with a 3.23 ERA in 51 starts in three seasons with Miami. Alvarez tossed a no-hitter on the final day of the 2013 season and had his best year in 2014 when he went 12-7 with a 2.65 ERA in 30 starts.
Leon made his Major League debut with the A's last year and was 0-2 with a 4.39 ERA in 19 games over six separate stints. He saw his most extensive action during a September call-up when he logged a 3.21 ERA in 10 appearances. The 27-year-old right-hander spent the balance of the season with Triple-A Nashville where he was 2-5 with a save and a 2.95 ERA in 20 games, including six starts.