Now that the 49ers are in the playoffs for a third straight season, it's time for a reality check:The Green Bay Packers, with healthy quarterback Aaron Rodgers, are a very dangerous team.Oddsmakers have made the Niners 2½-point favorites for Sunday's 1:40 p.m. NFC wild-card game – the only road team favored in the first round. San Francisco, after all, is on a six-game winning streak, has won 11 of its past 13, finished 12-4 and has beaten Green Bay in three consecutive meetings, including Game 1 of this season and in the playoffs last season.But given Rodgers' health – he returned from a broken collarbone to throw for 318 yards in a win over the Bears this Sunday to clinch the NFC North title – and the 49ers' recent difficulties against opposing quarterbacks, the 49ers could find themselves one-and-done if they can't contain Rodgers & Co.Consider: Over the past two games, in victories over the Cardinals and Falcons, quarterbacks Carson Palmer and Matt Ryan have put up big passing numbers against the 49ers defense. In Sunday's 23-20 49ers win, Palmer completed 28-of-49 throws for 407 yards, two TDs and nearly led the Cards to a comeback victory. The...