Andre Lotterer has explained his decision to miss the World Endurance Championship's Sebring round in favour of simulator work for his DS Techeetah ABB FIA Formula E team.
Lotterer has been an ever-present in the WEC since its formation in 2012 and will miss what would have been his 55th race in the series at Sebring.
The simulator work is considered vital for Lotterer and his Techeetah team because it takes place ahead of a new event on the Formula E calendar, Sanya in China, and will inform its preparation for the race.
The former Audi and Porsche LMP1 driver had been critical of FE back in 2015, but he later admitted he had not seen "the bigger picture of the series" until joining Techeetah in '17.
Lotterer told Autosport that he personally made the decision to skip competing for Rebellion Racing at Sebring in favour of his FE commitments.
He said: "I've been in WEC since day one and love the championship.
"Obviously, things change and this championship [FE] became quite important as it's city tracks.
"And it's [Sanya] a new one, we tried to arrange the dates so we could do a proper job and it was clashing with the race, so I took the decision to focus fully on FE and I thank Rebellion for understanding this.
"It's not easy to let your team-mates down and Sebring is quite a big race.
"It's quite a rare occasion and hard to understand that its for a sim session but it is a very important preparation for Formula E so I took the decision.
"Also in WEC, it's difficult to win with the Toyotas [so dominant]."