MLB.com reports the Arizona Diamondbacks and the Milwaukee Brewers have made a trade involving six-players.

Milwaukee received former All-Star catcher Johnny Estrada, right-handed starter Claudio Vargas and right-handed reliever Greg Aquino for steady left-handed starter Doug Davis and a pair of prospects, lefty Dana Eveland and outfielder David Krynzel.

Estrada, 30, has batted better than .300 with at least 70 RBIs in two of his three seasons as a starting catcher

28 year old Claudio Vargas was 12-10 with a 4.83 ERA in 30 starts and average 5 2/3 innings per start with the Diamondbacks in 2006.

Aquino, 29, had a 4.93 ERA in 111 relief appearances over the last three seasons.

31 year old Lefty, Doug Davis went 11-11 and had a 4.91 ERA, 159 strikeouts in 203.1 innings with the Brewers last year. For his career he has a 62-63 record with a 4.35 ERA.

Milwaukee's number 1 draft choice in 2000 David Krynzel hit .231 with 7 homeruns, 23 stolen bases with a .314 on-base percentage at Nashville in 2006. Although he may be very inconsistent at the plate, he is a very good defensive player.

Dana Eveland is a decent prospect who just turned 23. He went 6-5 with a 2.74 ERA in 20 games for Triple-A Nashville. When he was promoted to the big-leagues, he went 0-3 with an 8.13 ERA in nine games and 5 starts for the Brewers.

Estrada, Vargas and Aquino are all eligible for salary arbitration. Davis is also eligible for arbitration and will be a free agent after the 2007 season.