Lando Norris says he is not worried by McLaren team-mate Oscar Piastri's growing momentum in F1's title race - although admits he still does "need to get a move on" to improve his own results. Norris lost the leadership of the Drivers' Championship for the first time this season after Piastri won the last race in Saudi Arabia, the Australian's second victory in succession and third in five grands prix already this season. The Briton trails Piastri by 10 points ahead of this weekend's Miami Grand Prix, the scene of Norris' maiden win in F1 last year. But Norris insisted he was "not worried at all" that it was his team-mate building momentum at this stage of the season as he expressed confidence he would get on top of McLaren's pacesetting car to return to his best form soon. "He's doing a good job and he deserves it. Nothing more than that," said Norris of the in-form Piastri. "I don't believe so much in the momentum stuff. Just my opinion, but I'm doing what I can. "Clearly, I've made some mistakes and not at the level I need to be, but I believe I can be at the level soon enough. So, no reason to be worried. It's round six of 24. I'm not going to say that forever. "I know I need to get a move on and I need to get into gear a little bit, but I'm doing the best I can every weekend at the minute and trying to improve. "But the speed is there, the pace is there, the race pace is definitely there. It's just one thing I need to tidy up and it's a difficult thing, but I'm confident that I'll get it." Please use Chrome browser for a more accessible video player Look back at some of the most dramatic moments to have taken place around the Miami International Autodrome Pre-season title favourite Norris and McLaren boss Andrea Stella have spoken in recent races about the difficulty the Briton has been having in putting the team's 2025 car on the limit, with the latter accepting that changes for this season "took something away from Lando in terms of predictability" that they were now working to correct. Norris has made mistakes costing him grid positions in three of the five main qualifying sessions this season, most notably a crash which left him 10th on the grid last time out in Jeddah. Asked on Thursday when this change or upgrade might arrive on the MCL39, Norris said:" I mean, I certainly think it will help. I probably, I don't honestly know the exact timeline of things. "There's also a mixture of things that will probably slowly come and be implemented over time. "But I also don't want to just rely on that myself. There are also things I'm trying to work on separately, and hopefully that's a better fix than waiting for all the bits to come. "But it's good that we're working as a team and the team are working hard to try and understand these things, because it's been clear that there have been some differences from last year in how the car works and how it acts, and then how I'm able to get lap time out of it and perform. "I might have to be a little bit patient with certain things. Some things are bigger than others. But it takes time, some of these things. So I just keep my head down and keep pushing myself." Please use Chrome browser for a more accessible video player The Miami Grand Prix is a unique experience, watch our favourite moments from the last few years! More to follow... Friday May 2 3pm: F1 Academy Practice 1 5pm: Miami GP Practice (session starts at 5.30pm) 7.30pm: Team Bosses' Press Conference 8.15pm: F1 Academy Practice 2 9.05pm: Miami GP Sprint Qualifying (session starts at 9.30pm) Saturday May 3 3.20pm: F1 Academy Qualifying 4pm: MIAMI GP SPRINT (race starts at 5pm) 6.30pm: Ted's Sprint Notebook 7.50pm: F1 Academy Race 1 8.35pm: Miami GP Qualifying build-up* 9pm: MIAMI GP QUALIFYING* 11pm: Ted's Qualifying Notebook* Sunday May 4 6pm: F1 Academy Race 2 7.30pm: Grand Prix Sunday: Miami GP build-up* 9pm: The MIAMI GRAND PRIX* 11pm: Chequered Flag: Miami GP reaction* Midnight: Ted's Notebook *also live on Sky Sports Main Event Formula 1 heads to Miami for a Sprint weekend, starting this Friday live on Sky Sports F1. Stream Sky Sports with NOW - no contract, cancel anytime