Miles Robinson went down with a non-contact injury this weekend. Speculation is that it is serious, possibly his Achilles. I guess we'll hear more today.
If it is his Achilles, or anything comparable, he'll miss the World Cup. You hate to see an injury like that for anyone at anytime, but it's awful for a player like Robinson 6 months before a World Cup.
Also, since Zimmerman and Robinson were really the only "locks" at this point to make the team at CB (maybe Richards as well if he is healthy), everyone else's chances just went up. Long has looked good so far this season and Berhalter seems to like him; he may end up starting in the WC. Also, CCV/Brooks/ EPB will likely get looks this summer and one or two of them could end up in Qatar.