Ole Gunnar Solskjaer had a lot to smile about during Manchester United's thumping 4-0 victory over Chelsea on Sunday.Four goals, a clean sheet and some superb individual performances, namely from United's three Premier League debutants.Harry Maguire was a rock at centre-back, Aaron Wan-Bissaka demonstrated his defensive and attacking talents, while Daniel James scored after coming on as a substitute.Speaking in a post-match interview with Sky Sports, Solskjaer hailed the trio for making an immediate impact."They slotted in really well," he said. "Harry has had three or four sessions with the team but he's such an experienced professional."He's done exactly what we've signed him for, his presence in both boxes, his calmness and composure on the ball."We've had a couple of talks with him about how we want to play and that will only improve. He's a leader and with him, David de Gea and Victor Lindelof they marshalled that back line really well."It is important to have strong personalities at the back. Aaron is so aggressive and doesn't want to get beaten by tackles, he's a proper Manchester United defender."[James] has pace and he's got an X factor. He's worked really hard and so pleased for him. It's been a summer of ups and downs as we all know."Wan-Bissaka was brought in as a direct replacement for Antonio Valencia and the 21-year-old showed why he's nicknamed 'The Spider'.He made several important tackles using his long legs and provided a lot of attacking threat down the right-hand side.A montage has been made of every touch and tackle made by Wan-Bissaka and it shows exactly why United splashed £50m to sign him from Crystal Palace.

Wan-Bissaka looks the real deal and it has to be said that United's defence looked pretty solid with Maguire, Victor Lindelof and Luke Shaw.

United shipped goals far too easily last season, but that should hopefully change this time around 'Slabhead' and 'The Spider'.