Jose Mourinho declared his Manchester United side were high on confidence as he batted away claims that Paul Pogba should have been sent off in the 4-0 win at Swansea.
United made it eight goals in two Premier League games by following up their opening victory over West Ham with another four-star show at the Liberty Stadium.
Eric Bailly put them ahead with his first United goal on the stroke of half-time before Romelu Lukaku, Pogba and substitute Anthony Martial scored in the final 10 minutes.
Pogba had earlier escaped a second yellow card for a clumsy challenge on the half-hour mark, just four minutes after being booked for a similar foul on Tom Carroll.