Per Ben Badler, the Texas Rangers have signed 19 year old amateur free agent Omarlin Lopez to an $825,000 deal.
Lopez, a Dominican whose signing makes him part of the 2012-13 J-2 class, is the Rangers' top signing, dollar-wise, from this class. The Rangers largely sat out last summer's J-2 class after signing Jairo Beras to a $4.5 million deal the previous winter, which Jon Daniels said ate most of their international budget. This signing will not impact the Rangers' bonus pool for the 2013 J-2 period, which starts on July 2, 2013.
Everything I know about Lopez is from the linked article, so if you're interested in knowing about him, just click the link. He's listed at 6'3", 180 lbs., and is a former shortstop who is a recent convert to pitching. He had previously agreed to a deal with the Colorado Rockies, but it fell apart because of a controversy over his age.