HOUSTON — Giancarlo Stanton avoided an immediate placement on the injured list after leaving Friday’s game with a tight right calf . That hardly means he is in the clear. As of Saturday afternoon, the Yankees were trying to give Stanton more time to see if he could improve enough to steer clear of the 10-day IL, though landing on it still seemed like the most likely scenario just to make sure it did not turn into a longer-term injury. “I feel better than [Friday],” Stanton said before Saturday’s game against the Astros. “I’m going to try to get to 24 hours or maybe [Sunday] to see where we’re at and then decide what to do.” Stanton had not yet undergone any tests on his calf, though he could in the coming days. In the meantime, he was spending his day in the training room getting treatment. “It’s not ideal,” Stanton said.…