Ross Detwiler started to suit up for some work out on the fields, only to notice that the backside of his baseball belt had a strange warning label stamped onto it. A confused and worried look came across his face, and I asked what was going on. He showed me the label. "WARNING: This product may contain a chemical known to the state of California to cause cancer or birth defects or other reproductive harm," it read. Detwiler laughed about it for a couple seconds, then tried to track down Wallace. "Hey Wally," Detwiler said. "Can I get a new belt?" Desmond has been here for a couple of days now, but he was joined today by fellow infielders Danny Espinosa, Jamey Carroll and Zach Walters. A few other minor league position players started to arrive today, as well, including outfielders Steven Souza and Michael Taylor. Walters will wear No. 4 this spring, Caroll will sport No. 1, and new backup catcher Jose Lobaton will wear No. 59. Minor league left-hander Felipe Rivero, who was acquired yesterday with Lobaton as part of the package for Nathan Karns, is on the 40-man roster, so he'll get a locker here and be a part of big league camp. Rivero will wear No. 73. Lobaton has a locker in between Solano and Wilson Ramos. Apparently the Nats are cornering the market on Venezuelan catchers, with Lobaton, Ramos and Sandy Leon all in a four-locker span. Reporters chatted with Lobaton for a few minutes today as he was getting settled. The 29-year-old seemed very pleasant and outgoing, and sounds excited to get going with a new team. He isn't familiar with many of the Nats' pitchers (he faced Fister last season, but that's about it), but says he'll lean on Ramos to help get caught up on everything. Lobaton was asked if he knows much about Strasburg. "I heard he's nasty," Lobaton noted, with a smile.