#2 Kurt Angle

Although WWE has not made any buzz about it, the match against Dolph Ziggler is Kurt Angle's first singles WWE match in more than 12 years. WWE usually does not spoil the return matches of superstars, especially that of someone like Kurt Angle. The former Olympian might edge past Dolph Ziggler.
However, Angle may not go past the semi-final, since both of his potential semi-final opponents are protected by WWE. Thus Kurt's journey in the World Cup may come to an end in the semi-final.
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Prediction: Semi-final exit
#3 Seth Rollins

Seth Rollins is in an intense feud against Dean Ambrose. Hence he would not be caring much about this tournament. Either way, Rollins is scheduled to battle 'The Dominator' Bobby Lashley in the preliminary round.
However, with Ambrose lurking around in the shadows, Rollins may fail to beat Lashley. The Lunatic Fringe might make a surprise appearance to cost Rollins his match, thus adding fuel to the fire.
Bobby Lashley would possibly beat both Seth Rollins and Kurt Angle to advance to the final.
Prediction: First round exit