Neuvirth, who was selected by the Capitals in the second round (34th overall) of the 2006 NHL Entry Draft, joins the Sabres after appearing in 13 games in 2013-14, posting a 4-6-2 record, a .914 save percentage and a 2.82 goals against average.
He spent the first six seasons of his NHL career in Washington. In that time, he has appeared in 134 NHL games, compiling a 59-41-13 record with seven shutouts, a .910 save percentage and a 2.67 goals against average.
Klesla, 31, was acquired by the Capitals earlier today from the Phoenix Coyotes. In his 13th NHL season, the defenseman from Novy Jicin, Czech Republic has appeared in 25 games for the Coyotes, recording four points and 24 penalty minutes.
In 659 career games with the Coyotes and Blue Jackets, Klesla has totaled 48 goals and 111 assists for 159 points and 620 penalty minutes.
Halak, 28, has posted a record of 24-9-4 with a 2.23 goals-against average and a .917 save percentage in 40 games with the St. Louis Blues this season.
Through his eight NHL seasons in Montreal and St. Louis, Halak has played in 260 career NHL games, earning a 139-81-26 record with a 2.38 goals-against average and a .917 save percentage.
The Bratislava, Slovakia native was awarded a share the William M. Jennings Trophy in 2011-12 for achieving the league’s lowest goals-against average (1.97).