The 2018 Nationals will not look much different than the team that finished the '17 season. After all, when a team wins 97 games and a second straight division championship, there is usually no need for sweeping changes. Washington has kept its roster largely in tact as it lines up for another shot at a World Series championship. The Nats return their top eight position players, top four starting pitchers and three best relievers. Plus, they made a few key signings for their bench and are counting on a couple of relievers to return from injury to fill out their bullpen. So, barring injury, there might not be too many position battles at Nationals camp in West Palm Beach, Fla. Here's a projection of how the 25-man roster might look on Opening Day: Catcher (2): Matt Wieters, Pedro Severino Severino will enter camp as the favorite to win the backup catcher's job, which will be a more crucial role this season since Washington plans on using more of a platoon with Wieters. Severino must beat out veteran Miguel Montero for the spot in camp, but the Nats believe Severino is ready to become a full-time Major Leaguer, and they will give him every opportunity to prove it. First base (2): Ryan Zimmerman, Matt Adams The Nationals got incredible production from this position a year ago, and they're hoping to at least match that production or not endure that large of a drop-off by adding Adams to replace Adam Lind.