"It's not an official trade until the paperwork goes through. In 24 hours, it'll be official," Washington general manager Mike Rizzo said Friday, before the Nationals hosted the Philadelphia Phillies.
ESPN.com's Buster Olney reports the Nationals are sending a little more than $2 million to Texas to help pay for the remainder of Guzman's $8 million salary.
Right-handed pitchers Tanner Roark and Ryan Tatusko would join the Nationals, Rizzo told Washington reporters Friday, calling them "two young, good Double-A prospects that will help our inventory."
Guzman needed to OK the deal because players with at least 10 years of major league service, including five consecutive years with their current club, cannot be traded without their consent. Guzman made his debut in the majors with Minnesota in 1999 and joined the Nationals in 2005.
"We've been made aware of the trade, and we've given our approval," Guzman's agent, Stanley King, said in a telephone interview. "He enjoyed the six years he spent in Washington, but it became clear that Cristian wasn't in their future. He's excited about getting into a pennant race."
Guzman initially was listed in Washington's lineup Friday, batting second and playing second base. But his name was whited out, and Adam Kennedy took over Guzman's spot in the batting order and in the field. When the Nationals' clubhouse opened Friday afternoon, Guzman was not there, and his locker had been cleaned out.
The Rangers acquired Jorge Cantu, who can play first, from the Marlins on Thursday in exchange for two Double-A pitching prospects -- Evan Reed and Omar Poveda. Guzman can fill the Kinsler void and take on a utility role once Kinsler returns.
Guzman, a two-time All-Star who was batting .282 with two homers and 25 RBIs this season, also gives the club some flexibility in that he's played shortstop and right field at times this season as well. In an 11-year career, he has hit .272.
Tatusko, a 25-year-old right-hander selected in the 18th round of the 2007 draft, was 9-2 with a 2.97 ERA in 100 innings this season (24 games, 13 starts) with the Frisco RoughRiders. He had 58 strikeouts and 40 walks and allowed 94 hits. Opponents batted .254 against him.
Roark, a 23-year-old right-hander taken in the 25th round of the 2008 draft, was 10-5 with a 4.20 ERA in 105 innings (22 games, 17 starts) as Tatusko's Double-A teammate. Opponents hit .276 against him as he allowed 113 hits. He had 75 strikeouts and 33 walks.
Heading into Friday's game, the Rangers had an 8½-game lead in the AL West.
Richard Durrett covers the Rangers for ESPNDallas.com. Information from ESPN.com's Buster Olney and The Associated Press were used in this report.