McLaren-Honda 's performance level has finally shown signs of progress, although the team has yet to find itself in the hunt for big points.
The Russian Grand Prix weekend will provide Honda with an opportunity to further unlock its power unit's potential which the manufacturer's F1 boss - and McLaren - believe is big.
"Sochi remains a demanding track for us," explains Hasegawa.
"The long straights combined with the stop and start nature mean the balance of energy management is essential to get right during the sessions.
"Unlocking power and managing fuel will also be key, and, with fuel consumption high, it will be important for us to recover as much energy as possible under braking."
The Sochi Autodrom nevertheless presents its own challenges which hopefully will not weight extensively on the McLaren-Honda's ongoing efforts.
"Overall, the track is quite technical, so it will certainly be a challenge for the team and the drivers.
"We think that our power unit is nearly there, so we’re looking towards another solid weekend of running and hope that we can be in a position to score some points in the race on Sunday."
F1 technical - How does ERS deployment work?
Classic F1 - Sweden 1977: Ligier and Laffite's 'Jour de Gloire'
Derek Warwick - Race of my life
Keep up to date with all the F1 news via Facebook and Twitter
Helmut Marko believes that Red Bull and Max Verstappen are unlikely to challenge for victory…
Automotive giant General Motors is reportedly back in the game as a potential entrant in…
The opening day of running at the Las Vegas GP was a smooth but chilly…
Williams is continuing to fight uphill battles this weekend in Las Vegas as a knock-on…
It was a solid start to the Las Vegas weekend for Ferrari with Carlos Sainz…
Lando Norris didn’t hold back in his assessment of McLaren’s performance on the opening day…