KISSIMMEE, Fla. – During the first two weeks of spring training games, Fernando Martinez has been buried among a mix of reserves and lesser-name players, all of whom are trying to claim a spot as a backup outfielder on the Astros’ 25-man roster. “I don’t want to think too much about that. I just want to focus right now on baseball and keep playing my game. I want to stay here,” said Martinez, who hit .237 with six home runs in 41 games last season with the Astros. Offense sputtering The Astros entered Wednesday tied for third among 30 teams in home runs (16) and slugging percentage (.493), while the [...]