The Lakers played without suspended center Andrew Bynum and seemed to be doing just fine until the Portland Trail Blazers ended the first half tonight at Staples Center with a 10-0 run to take a halftime lead. Pau Gasol shifted from power forward to center to replace Bynum and scored eight points and grabbed nine rebounds. Lamar Odom moved from a backup’s role to Gasol’s spot and had eight points and five rebounds. Kobe Bryant scored a team-leading 10 points on 4-for-8 shooting. Nicolas Batum had 19 points on 8-for-10 shooting for Portland.