David Riske, the veteran relief pitcher who compiled a 2.45 ERA in 65 games for the Kansas City Royals last season, is on the verge of agreeing to a multiyear deal with the Milwaukee Brewers, according to a club source. Riske could help the Brewers fill in the hole created by the departure of relievers Francisco Cordero and Scott Linebrink. Riske, 31, pitched in six seasons for the Cleveland Indians before going to Boston in the deal for Coco Crisp and splitting the 2006 season with the Red Sox and Chicago White Sox. Riske rebounded strongly in 2007, allowing just 27 walks and striking out 52 in 69 2/3 innings while working in middle relief for the Royals.