MONTMELO, Spain -- Sebastian Vettel has no doubts new Ferrari teammate Charles Leclerc can immediately challenge for the Formula One world championship in 2019.
Highly-rated youngster Leclerc has replaced Kimi Raikkonen at the Italian team, which arrives at a new season without two former world champions at the helm for the first time since 2013. One of the most compelling questions going into the new season is how Vettel, who won four titles at the start of the decade, will compete alongside the former Formula 2 champion.