DENVER – The decision to return J.D. Martinez to Class AAA Oklahoma City before spring training was complete looks even stranger nearly two months into the season. Martinez was a late cut during exhibition play but has recently found a home as the Astros’ cleanup hitter. He’s held the position 12 times this season and entered Thursday 11-for-31 with three doubles, two home runs and seven RBIs since May 21. The 25-year-old continues to be inconsistent. Martinez struck out five times in five at-bats Monday and dealt with an in-game benching earlier this year. But on a team lacking proven power hitters and run producers, the third-year player is one [...]