Question: Who was the English football player (defender) and manager during whose leadership the Manchester City signed the forward Francis Lee?
Sentence (from "1967–68 Manchester City F.C. season"): In the third full season under the management of Joe Mercer and Malcolm Allison, Manchester City were unfancied at the start of the season following a mid-table finish in 1966–67 Following the signing of forward Francis Lee, the club embarked on an unbeaten run that saw the club challenge at the top of the table.
Relevant evidence: Yes