In-form Raheem Sterling scored his 12th goal of the season as Manchester City cruised into the FA Cup quarter-finals and made history with a 3-1 victory at Swansea City.

Pep Guardiola's irrepressible side eased to a 15th consecutive win - a record for an English top-flight club - at the Liberty Stadium to stay in the hunt for an unprecedented quadruple.

Kyle Walker opened the scoring with a cross and two goals in the space of three minutes early in the second half put the Premier League leader out of sight.

Championship promotion contender Swansea was outclassed as the City juggernaut rolled on, although its did suffer a blow when Rodri was forced off with an injury before Morgan Whittaker pulled a goal back.

Jesus received treatment on his ankle early on, but was able to continue and the striker missed a chance to opening the scoring when he steered Benjamin Mendy's cross wide.

Swansea was chasing shadows as City dominated, knocking the ball around with a swagger, and Ferran Torres' shot from a tight angle was brilliantly tipped wide by Freddy Woodman.

Woodman was beaten on the half-hour mark, though, when Walker's centre from the right evaded everybody and found the far corner of the net.

Marc Guehi nodded wide at the other end in a rare Swansea attack, but an unmarked Sterling finished clinically when he was well picked by Rodri two minutes into the second half.

Swansea were caught out again soon after, with Jesus controlling a clever cushioned header back across goal from Bernardo Silva in an instant and swivelling to fire home with his left foot.

Joel Latibeaudiere somehow denied Mendy a tap-in with great last-ditch defending and Rodri limped off before Whittaker superbly gave the hosts a consolation, drilling in left-footed for his first Swansea goal.