The left-back has featured in 40 of the London side’s 49 total fixtures this season, with his solid form rewarded by a place in coach Julen Lopetegui’s 24-man squad.
The Red Devils, who topped Deloitte’s Money League in January for the world’s richest clubs, also came out top of the Social Network Rankings for the English Premier League in 2017
The Red Devils booked their place in Sunday's draw with a 2-0 home victory over Brighton & Hove Albion in the quarter-finals.
The match was played on Wednesday
Mane scored his first hat-trick for Liverpool in a 5-0 thrashing of FC Porto in their UEFA Champions League last 16 first leg tie last week
Twelve-time champions United, who beat Huddersfield Town to reach the last eight for a fourth consecutive campaign, are bidding for a second title in the last three seasons
Heading into a vital Champions League clash with Barcelona next week, Antonio Conte's charges produced a clinical performance on home soil that also saw Olivier Giroud open his account for the club
The London side are faced with a tough run of fixtures ahead, but the coach said a strong Cup run was high on his list of priorities for the rest of the season