WATCH: Dimitrov's dominance and the Bryans' bum rush

Is Grigor Dimitrov using the 2017 ATP finals to reach a new level of greatness? The Bulgarian has been the most dominant player at London the past few days and is a strong favorite against American Jack Sock in the semifinals. Meanwhile, David Goffin upended Dominic Thiem with a highlight package of his own. They led the day with several impressive shots.

3. Goffin’s Impeccable Control and Hustle

From the beginning of his match against world No. 4 Dominic Thiem, Goffin was energized and precise. His best shot was a thrilling runner from off the deuce corner to clinch the first set.

The Belgian cruised to the 6-4, 6-1 win and his versatile skills included closing off the net, a big inside out forehand and the matchpoint doubles return winner up the line. It’s all included here:

2. Dynamic Dimitrov Has Everything Working

For fans who love the beauty of a one-handed backhand service winner, this was a delightful reply that took early, smooth timing to send a rocket through the court. Watch opponent Pablo Carreno Busta helplessly throw up his arms to the tennis gods.

Dimitrov’s 6-1, 6-1 thumping was the second successive match he took 12 of the 14 games from his opponent.

1. The Bryan Brothers Bum Rush

Although Mike Bryan did not get his doubles record-breaking 1057th victory, he and brother Bob set up a comical series of trick tactics. They humorously invited other doubles team to try their zany best.

The No. 1 team of Marcelo Melo and Lukasz Kubot gave it their best shot.