PORTLAND, Ore. — One night after upsetting the Sacramento Kings with a thin roster, the Detroit Pistons entered Thursday’s game against the Portland Trail Blazers even lighter with just nine available bodies because of an active trade deadline. However, a light roster didn’t take away from what was the Pistons’ most valiant comeback victory of the season. After trailing by as many as 23 points with five minutes left in the third quarter, the Pistons forced the Blazers into overtime and came away with a 128-122 victory in Portland. It was the first time they achieved consecutive victories since…