Durham batsman Keaton Jennings made a century on his first Test innings for England against India on Thursday.
Here, Press Association Sport looks at the 24-year-old's career by numbers.
103 - He is the 103rd player to score a century on Test debut.
19 - He is the 19th England player to do so.
1948 - Year when an England batsman last scored a century on his first day in Test cricket. Jennings is the fourth in all.
7 - He is the seventh player from last season's Durham squad, which ended up being relegated from Division One and fined by the ECB following a financial bailout, to have represented England.
1548 - Championship runs last season, the most in Division One.
7 - Centuries last season, the most in Division One.
11 - Jennings is the 11th opening partner Alastair Cook has had since Andrew Strauss retired in 2012.
20 - Appearances for South Africa Under-19s before moving to England.
35.89 - Career first-class average at the end of 2016 season.
2011 - Year of his first-class debut, for Gauteng against Free State.
Source: PA