Jake Cooper has praised Millwall's ability to secure a win on the board at the first attempt last Saturday, and looks ahead to a tough test this weekend at West Bromwich Albion.
Cooper says the new recruits were taken aback by the electric atmosphere at The Den, and is proud to begin with a clean sheet.
"We were all buzzing with the result, and the new lads were impressed with the atmosphere on Saturday," the defender says.
"The fans at The Den create a great buzz around the place on days like that, and we need to keep performing like we did and keep the mood high. I'm sure the new boys will love every minute they get out there for us.
"The clean sheet was massive. To start the season with a win after everything about how we didn't perform well enough last season was huge for us. We've got it off our chests with the win, it pushes us forward and we've got confidence now heading to West Brom. A lot of that confidence has come from Saturday's game."
Cooper gives his take on last season's Play-Off Semi-Finalists West Brom, who too got their maiden victory on the opening weekend - a first under Slaven Bilic away at Nottingham Forest.
"I watched a bit of West Brom on Saturday as they played after us - they have a good squad with good young players.
"They'll be looking to improve on last year, and we'll have to go there and be strong, putting in a solid display.
"We'll have to play very well to get anything out of that game, and I'm sure we can do that."
Having returned very sharp for the pre-season schedule, Cooper is looking to continue his momentum from the previous campaign.
"I feel great, I had a good pre-season with a lot of minutes and I got myself fit over the summer.
"I'm raring to go and I feel like I'm coping well off the back of last season. I want to take that into this season and build on last season's positives."
The defender spoke to millwallfc.co.uk at the club's Open Training Session at The Den on Monday - an initiative Cooper and the squad fully support.
"It's great that where the schools are off, the kids have a chance to come down and watch us train, something that they wouldn't usually be able to see.
"We can put on a really good insight for them, and it's key for the new players to meet the fans, and the fans to be able to see how they train.
"It's always a great day to be able to come down here and train in front of the supporters."