Crawley caretaker manager Craig Brewster was delighted with his side's performance after a 2-0 win over Millwall.
Goals from Billy Clarke and Gary Alexander ensured a fifth win from six pre-season games for Crawley.
"Another 90 minutes under our belts and I thought it was a decent performance against an excellent side," Brewster told the club's official website.
"Our goalkeeper had to make two or three really, really good saves, but on the whole we performed to a very high standard.
"We were clinical and it's always pleasing to keep a clean sheet and it's another step nearer to the start of the season."