Sainz Jr. to race number 55 in Formula 1

Carlos Sainz Jr. has confirmed that he will use 55 as his permanent race number in Formula 1.

Sainz Jr. was announced as a Toro Rosso driver for next season on Friday and under Formula 1 regulations, which were introduced at the start of 2014, each driver can select a number which they will race with for the remainder of their career.

At a press conference in Madrid, the young Spaniard revealed that he would race the number 55, incorporating the design into his name with the hashtag '#Carlo55ainz'.

Sainz Jr's fellow rookies, Toro Rosso team-mate Max Verstappen and Sauber's Felipe Nasr, have not yet confirmed their race numbers.