One day after he was called up, rookie righthander David Martinez pitched 2 2/3 strong innings of relief in his major league debut to give the Astros an opportunity Wednesday night against the Rangers. Martinez held the Rangers to one hit and one unearned run with one strikeout over 2 2/3 strong innings after relieving starter Erik Bedard in the Astros’ eventual 5-4 loss. “Truly, I felt very happy,” Martinez said. “Thank God I didn’t feel nervous. I didn’t feel any pressure. To have pitched my first game in the majors, I don’t any words to describe what I felt at the moment. But that moment and that experience that [.]