MARANELLO, Italy (AP) — Lewis Hamilton's arrival will present “a huge opportunity” for Ferrari next year but signing the seven-time Formula One champion involved some uncomfortable phone calls, team principal Fred Vasseur said Tuesday. Hamilton is joining Ferrari for next season after driving for Mercedes since 2013. He will team up with Charles Leclerc at the Italian team after Carlos Sainz Jr. leaves. One of the most difficult was the one with Toto," Vasseur said. Ferrari struggled for much of the season but was the only other team to take a race victory as Sainz won the Singapore Grand Prix.

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Persons: — Lewis Hamilton's, Fred Vasseur, Hamilton, Charles Leclerc, Carlos Sainz Jr, “, ”, Vasseur, Hamilton —, Sainz, Toto Wolff, Toto, “ I’m, Carlos, ” Leclerc, “ We’ve, Lewis, Ferrari, Leclerc, Red Bull, Max Verstappen Organizations: Ferrari, Mercedes, McLaren, Red, Singapore, Prix Locations: MARANELLO, Italy, British, Hamilton