Marquez was the fastest in both the training sessions in the 10 July practice at the 2015 German MotoGP at Sachsenring.
Where to Watch Live
The third practice session starts at 12.30pm BST. Live coverage of the qualifying for the Grand Prix starts at 3.30pm BST on BT Sport 2 and BT Sport 2 HD. Real-time internet updates are available on MotoGP's official website.
Spanish star and Honda rider Marquez clocked at 1m 21.621s to finish Friday's session at the top as he was the fastest during the Free Practice 2. He was 0.119s ahead of the British Yamaha rider Bradley Smith, who clocked a top speed of 294 km/hr.
Ducati rider Andrea Iannone was third, while Jorge Lorenze finished the race in fourth spot, .265s from the top. Leader Valentino Rossi had a dismal performance, finishing the race in seventh spot, dropping down from second.
Stefan Bradl was out of the reckoning with a fractured scaphoid at Assen and was consecutively replaced by Claudio Corti. Karel Abraham's foot injury at Catalunya has kept him out of action and he will be replaced by Honda test rider Hiroshi Aoyama.
Top 10 MotoGP Free Practice 2 Times from Sachsenring:
1. Marc Marquez(ESP) Repsol Honda 1m 21.621s
2. Bradley Smith (GBR) Monster Yamaha Tech 3 1m 21.740s
3. Andrea Iannone (ITA) Ducati Team 1m 21.824s
4. Jorge Lorenzo (ESP) Movistar Yamaha 1m 21.886s
5. Dani Pedrosa (ESP) Repsol Honda Team 1m 21.889s
6. Aleix Espargaro (ESP) Team Suzuki Ecstar 1m 22.095s
7. Valentino Rossi (ITA) Movistar Yamaha MotoGP 1m 22.159s
8. Scott Redding (GBR) Estrella Galicia 1m 22.170s
9. Yonny Hernandez (COL) Octo Pramac Racing 1m 22.196s
10. Andrea Dovizioso (ITA) Ducati Team 1m 22.340s