MONZA – Nico Rosberg has no intention of giving Mercedes team-mate Lewis Hamilton an easy ride to his third world title despite falling 53 points behind him in the race for this year's championship after Sunday's Italian Grand Prix. The 30-year-old German, who retired with a blown engine with two laps remaining, had his worst day of the season as the defending two-time champion Briton drove to his 40th career win in commanding style. "It's a fact that it's a massive step in the wrong direction," said Rosberg. "It's the biggest loss I've had in one day throughout the whole season, so that's very bad, and I now need to catch up a few points. "I keep going. Giving up doesn't exist for me. So, I'll just keep fighting and I've got to try to win the next couple of races somehow."