Lewis Hamilton is eager to get his teeth stuck into another Formula One title challenge as soon as possible, but his Mercedes continues to struggle in 2022.

New regulations in F1 this season, introduced to encourage "closer racing", have already shaken up the grid – to Hamilton's detriment.

Charles Leclerc led a Ferrari one-two at the season-opening Bahrain Grand Prix, while Max Verstappen and Sergio Perez would both have finished ahead of Hamilton, too, had Red Bull not suffered a dramatic double retirement.

The seven-time champion has been honest enough to acknowledge his W13 car lacks the pace of its rivals, but that does not mean he is happy to take a back seat.

"I don't currently feel too stressed, but I want to get in the fight as soon as possible," Hamilton said ahead of FP1 at the Saudi Arabian GP on Friday.

"The last race was an amazing feeling for us, given where we thought we were going to be, to come out with the result that we did.

"But we can't rely every weekend on that to happen, so we need to move fast, and move forward as fast as we can."

Hamilton would likely have been frustrated then by his performance in the first practice session later in the day, running in an alarming ninth as Leclerc and Ferrari again set the pace.

While Red Bull are confident they have mastered the issues that prompted their Bahrain DNFs, there is little evidence so far of Mercedes getting to grips with the porpoising that has caused Hamilton such problems.

Mercedes team-mate George Russell was down in 15th on Friday, but he at least appears a little more patient in his first year with the team.

"In Formula One, things change incredibly quickly," Russell said. "We are very fortunate that the calendar is not very dense at the start of this season, and even if it's a couple of months, we're only six or seven races down out of a 23-race season.

"If you come out of the blocks incredibly fast after the summer break, even as Mercedes and Lewis did last year, you're still in with a shot.

"So, we need to be in almost damage limitation mode at the moment, pick up the pieces where there's an opportunity, and don't throw away unnecessary points."

Mercedes have not failed to take either a pole position or race win through two grands prix of a season since 2013.

Meanwhile, Russell could become the second Silver Arrows driver – after Michael Schumacher in 2010 – to complete three races without reaching the podium, having deputised for Hamilton once while with Williams.