The first rule of F1 is to beat your team-mate, and that is why driver head-to-heads provide some of the most fascinating battles of every season.
2023 will be no different as 20 incredible talents in 10 garages pit their wits against each other. And who comes out on top in each of those garages will likely decide who remains on the grid for 2024.
The betting odds are now out for each team head-to-head and there is a pretty strong mix, from one-horse races to impossible to call.
No surprises here - the bookmakers are calling this one off before it starts. Two-time defending world champion Verstappen has dominated his Mexican team-mate on a regular basis, despite all that late-season beef in 2022.
Leclerc is a clear favourite but it's not a foregone conclusion. Sainz was more consistent on Sundays while the Monegasque needs to translate that blistering qualy pace into race wins. His strike rate so far is miserable - lower than 25 percent...
There is much excitement about the F1 debut of young Aussie Oscar Piastri, but the oddsmakers give him no shot of beating his own team-mate. Norris is expected to again be the standard bearer for the team in papaya.
There was much hilarity earlier this week when Fernando Alonso tabbed his new team-mate Lance Stroll as a potential future world champion. For now though few believe Stroll can even beat his own team-mate, who remains a formidable foe.
Worrying times for Tsunoda - he is the underdog against his own rookie team-mate as he heads into his third season. Big improvement is demanded from the Japanese star, and the pressure is now really on. Can he deliver?
There is virtually nothing to separate two men who have history, and they should provide a cracking subplot at Haas this season. Right now, if the bookmakers are right, it's K-Mag who will again be uttering the words "suck my balls honey" at the end of the season.
Alex Albon (2/9) vs Logan Sargeant (3/1)
Sargeant gives the US some much-needed interest on the grid as the sport really continues to grow Stateside. His prospects right now don't look particularly appealing - he's a clear outsider in the head-to-head battle with team-mate Alex Albon.
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