Lewis Hamilton has already admitted that things could get tense between himself and George Russell if they are both in with a chance of the Formula 1 title this year.
The two Brits worked well together last year, their first as Mercedes team-mate. But neither of them were in the hunt for the championship and spent much of the year simply hoovering up as many points as they could in a less competitive car than they would have liked.
Mercedes will hope to be back fighting at the front again this year. If Hamilton and Russell to have cars capable of achieving that, then perhaps there relationship between them might change.