Updated at 2:44 p.m.
Today is the deadline for all arbitration-eligible players to either sign with their respective clubs or exchange contract figures in advance of hearings that will take place next month. With Morse, Slaten and left-hander John Lannan (who came to terms yesterday on a one-year, $2.75 million contract) now signed and Gorzelanny's case settled by the Cubs, the Nationals will avoid taking any players to arbitration for the first time since the franchise relocated from Montreal in 2005.
Morse's contract includes a base salary of $1.05 million, with the opportunity to earn up to $300,000 more in incentives based on plate appearances. The 28-year-old utilityman is coming off a breakout season in which he hit .289 with 15 homers and 41 RBI in only 98 games while earning only $410,000.
The Nationals plan to use Morse as the right-handed half of a left-field platoon with either Roger Bernadina or Rick Ankiel. He was particularly effective against left-handed starters last season, posting a 1.094 OPS in 30 games.
Slaten, who will make $695,000 plus incentives, posted a 3.10 ERA in 49 relief appearances last season. Along with Sean Burnett, he gives manager Jim Riggleman two reliable left-handed options out of the bullpen.
The 30-year-old, owner of a career 3.49 ERA in 175 major-league games spread out over parts of five seasons, was eligible for arbitration for the first time. He can't become a free agent until after the 2013 season.
Gorzelanny, meanwhile, will earn $2.1 million after coming to terms with the Cubs. Because his trade to the Nationals for three minor-leaguers won't be completed until he passes a physical, he needed to sign with Chicago today to avoid exchanging arbitration figures.
The Nationals, though, signed off on the contract terms and will assume Gorzelanny's 2011 salary, which represents a $1.3 million raise from his 2010 contract.