In recent weeks and months, Ambrose has come under fire for rarely defending the belt. His last pay-per-view defense was at Night of Champions in October. It seems inevitable that, with The Shield at main-event level, the U.S. Championship is going to leave its spot around Ambrose's waist very soon.
The performer who is able to knock off Ambrose is going to have an uphill struggle to win back the credibility of the title. Its recent invisibility has damaged its prestige, so the new champion has to be special.
Fortunately, there is no shortage of excellent midcard Superstars queuing up to win the belt.