Here are five things you might not know about the England and Harlequins fly-half.
#1. Early life
Smith was born in Manila in the Philippines and picked up the game at the age of 7 with Centaurs RFC when his family decided to move to Singapore, he learnt the game there before moving to Sussex as a 13-year old. He has two younger brothers, Luc and Tomas.
#2. International roots
His Dad, Jeremy Smith lived in Hong Kong from 1992-97, playing for Valley and the national side at fly-half.
#3. Standout at school
The naturally gifted playmaker received a sports scholarship to attend Brighton College where he studied maths, politics and business while going on to achieve great things on the rugby pitch as he captained the school's 1st XV en route to an unbeaten campaign.
#4. Young-star
At just 18 years of age and 200 days, he made his Premiership debut at Twickenham to become the youngest fly-half to start in the top flight since a 17-year old George Ford.
#5.Girlfriend
He's been dating model Beth Dolling for over a year.
