Charles Leclerc is second in command at Ferrari and Lewis Hamilton says he understands how difficult that is.
It has been six years since Sebastian Vettel's run of four consecutive F1 world titles came to an end but he is feeling confident for 2019.
He was fortunate to win the Azerbaijan Grand Prix in 2018 and Lewis Hamilton wants an improved performance at this year's race in Baku.
Mercedes duo Lewis Hamilton and Valtteri Bottas are chasing a fourth straight one-two as the Formula One paddock arrives in Azerbaijan.
Having struggled to match Mercedes in 2019, Ferrari are beginning development of the SF90 in Azerbaijan this week.
Mercedes have flown out of the blocks in the 2019 Formula One season, leaving a grumbling Sebastian Vettel to worry over his Ferrari status.
Valtteri Bottas was on pole for F1's 1,000th race but acknowledged a poor start cost him victory as Lewis Hamilton triumphed in China.
Mercedes became the first team to start the season with three straight one-twos since 1992 after Lewis Hamilton led Valtteri Bottas home.
Despite having to settle for second place on the grid, Lewis Hamilton was pleased to close the gap to the "stellar" Valtteri Bottas.
Mercedes secured the top two positions in qualifying for the Chinese Grand Prix, Valtteri Bottas finishing ahead of Lewis Hamilton.