The Roseburg High girls basketball team knows it has a monster challenge awaiting it Saturday night. The Indians (18-7) travel to Portland to face top-seeded Central Catholic (22-3) in the second round of the Class 6A playoffs, with the winner advancing to the state tournament. Tipoff is set for 6 p.m. The Rams, coached by Sandy Dickerson, won the Mt. Hood Conference title and were ranked No. 1 in the most recent 6A coaches’ poll. They finished third in the state tournament last year, and feature two Division I recruits in 6-3 senior post Kailee Johnson (Stanford) and 5-10 senior …