Mercedes rules out supplying engines to Red Bull

Mercedes has ruled out the possibility of supplying Red Bull with Formula One engines.

Honda's decision to leave the sport at the end of the 2021 season means Red Bull and its sister team Alpha Tauri will need to find a new engine supplier to power their cars from 2022 onward.

There are only three other engine manufacturers in F1 -- Mercedes, Ferrari and Renault -- but while it is not yet clear what Red Bull will do, Mercedes has ruled out a supply deal.

"No," Mercedes team boss Toto Wolff said when asked if there was any chance of supplying Red Bull. "For various reasons, but the main thing is we are supplying four teams, including us.

"We are almost in a state that we can't make PU for all of…