Coach Mike Krzyzewski's fairytale ending is alive and well after Duke came from behind to knock Texas Tech out of March Madness 78-73 and move on to the Elite Eight.

Krzyzewski – affectionately known as 'Coach K' – is in the last season of his 42-year run as Duke's head coach, and is searching for his sixth national championship.

It was far from easy for the Blue Devils against a Red Raider side in their third Sweet 16 from the past four tournaments, trailing 33-29 at half-time.

In the final 15 minutes, neither team was able to build a lead of more than five points as it seesawed back-and-forth before two clutch Jeremy Roach jump shots gave Duke a 73-68 buffer with 1:33 remaining.

Duke's top NBA Draft prospect Paolo Banchero showed exactly why he is going to make plenty of money at the next level, scoring a team-high 21 points on seven-of-12 shooting to go with four assists and three steals as the best player on the court.