Will Andre Ward be the next fighter to lose his undefeated status (to "King" Arthur Abraham)?

For the first time in the Super 6 he is fighting outside of Oakland. Could he overlook Abraham because he lost 2 fights in a row? Most fans seem to be marking it as a given that Ward will win this. Ward deserves to be the favorite, but Abraham has the most immediate fight ending power of anyone I can think of in boxing. Your thoughts?