Cactus and Grapefruit League action is winding down with the regular season just days away. A few aces will be on the mound today for their final spring tuneups, while others are out to prove they belong on Opening Day rosters.
Here are four things to watch for (all times ET):
Chad Thornburg is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.