The defender admitted confidence was high going to Stamford Bridge only to leave deflated after Juliano Belletti's 30-yarder and an 80th-minute strike from Shaun Wright-Phillips secured a 2-0 win for the home side.
"Whenever we go to Chelsea it's always a tough game but they'd lost a few players and we believed Saturday was an opportunity to go and get something," reflected Daws back at Spurs Lodge on Monday.
"The first goal was a great strike by Belletti but from our point of view, we gave him too much room. The same thing happened there last season, so that was disappointing.
"We've got to move on, the games are coming thick and fast and we have a chance to put it right on Tuesday.
"We can't go into Reading thinking about what happened at Chelsea so we'll move on - we know what a massive game this is and what the FA Cip means to everyone at Spurs."
It's the third time we've faced the Royals in the space of 17 days - the first the incredible 6-4 league victory at the Lane, the second the 2-2 draw in the initial cup tie back on home soil.
Tuesday night represents our first visit to the Madejski Stadium this season with Reading having already won six of 11 games at home - seventh best in the Premier League.
"They beat us 3-1 last season, it was tough and we know they are a good team at home," added Michael.
"It's a tough test but we go there with confidence, we were playing well before Chelsea and hopefully we'll perform well there on the night and go through."
Are you ready for the Match Day Controlled Parking Zone at White Hart Lane?CLICK HERE...
Michael Dawson welcomes Tuesday's FA Cup replay at Reading as a quick chance to bury Saturday's loss at Chelsea.