The Houston Astros are likely done making significant additions to their Major League roster, according to Jeff Luhnow.

The Astros have been connected to big-name starting pitchers such as Chris Archer, Sonny Gray and Jose Quintana in trade rumors, but Luhnow has effectively shut those down.

Luhnow said, this is "probably the roster that we're going to have to start the season. We're always open to considering ways to improve it, but right now I'd set the expectations low that there's going to be any major changes."