#3 Apollo Crews
Apollo Crews was called up to the WWE main roster immediately following Wrestlemania 32. He had hardly spent a few months in NXT before making the jump.
A longer stay would have helped him greatly, as he lacks the charisma and personality required to be a success in the WWE.
He hasn't been able to get going on the main roster at all and his talent is not being showcased like it should be.
Crews' strength and athleticism make him a very unique talent, and he deserves the opportunity to show the world what he can do.
Rollins's open challenge is the perfect avenue for this.
Right now, Titus Worldwide has been pretty over thanks to Titus's epic fail at the Greatest Royal Rumble.
WWE can capitalise on this and give Crews a few minutes to create some magic in the ring with Rollins. This could turn a corner for the former Uhaa Nation's fortunes.