The final game in Group C features managers new and old, as longtime D.C. United leader Ben Olsen and new Montreal Impact boss Thierry Henry duke it out. That in itself provides plenty of intrigue, as do each club's Knockout Round aspirations.Both teams remain alive for a spot in the Round of 16. A win would book United's spot and, interestingly, set up a three way tie at the top of the group with D.C., Toronto and New England all on five points. Meanwhile, a win keeps the Impact alive with the possibility of advancing as a top-four third-placed team, so this could be an open, attacking slugfest. Both teams are also seeking their first win, though United have nabbed a pair of draws, while Henry's Impact suffered consecutive defeats.