Born in Edgworth, Lancashire, he played in The Football League for Bury and Manchester United at the turn of the 20th century.
He also played twice for the England national team, Born in Daisy Hill, Edgworth, Lancashire, Sagar was raised in Turton.
After a two-goal performance for Turton Rovers against Bury Reserves,[1] the Gigg Lane club signed Sagar in 1898.
In a seven-year spell with Bury, Sagar scored 71 goals in 186 appearances, and finished as the club's top scorer from 1903 to 1905.
[2] He scored another hat-trick in another 5–1 win against Barnsley later in the season on the way to a total of 20 goals in 23 appearances;[3] only a knee injury prevented him from contributing further to the club's second-place finish in the Second Division and subsequent promotion.