Sadler was a right-handed batsman who was a left-arm bowler, although what style he bowled is unknown.
Sadler made his debut for Cambridgeshire in the 1913 Minor Counties Championship against Durham.
[1] During his career he played a single first-class match for Wales against the Marylebone Cricket Club in 1930.
[2] In the Marylebone Cricket Club's first-innings he took 3 wickets for the cost of 55 runs.
In Wales first-innings, he ended unbeaten on 1, and when they followed-on in their second-innings he scored 17 runs before being dismissed by Sid Pegler.