Edwards saw Tom Lockyer go off at half-time with the game goalless, his captain having picked up a back injury in the opening minute in West London.
The Wales international was followed onto the sidelines by fellow centre-half Teden Mengi with a knee injury by the 76th minute, with the manager forced into another reshuffle.
āIt was a tough day for us,ā said Edwards. āNil-nil at half-time, weāre in the game, and defensively we were good, but with the ball we were off it today. We couldnāt really find our rhythm, and then to lose Locks at half-time was tough for us.
āThe timing of that first goal then knocked us as well, and it was a difficult day.
āWe lost two centre-backs today, with us already having a few out, and we were very makeshift then for a long period of the second half.
āWe kept going. The players kept going. We got a really good goal through Browny, and at that stage then, 2-1, we were back in the game and the third goal, it flattened our comeback then really.
āWe kept going and got a goal disallowed through Chongy, which was offside, so we canāt fault the boys with their effort, their commitment, they kept going to the end as they always do, but today we were second best.ā
The Hatters now face a big week with Premier League leaders Arsenal visiting Kenilworth Road on Tuesday night, before second-placed Manchester City, the champions, come to town in eight daysā time.
āWe look forward to these games, but weāve just challenged the boys now ā we want to get something from the games and weāll have to be better defensively,ā said Edwards.
āThe first half today we were good defensively, but in those moments weāve got to be better than we were today. Weāve got to hope to get a few of our defenders back and on the pitch, because we will be tested in those games, there is no doubt about it.
āBut at home, at Kenilworth Road, anything is possible. I know the supporters are going to bring the noise. I know they are going to be looking forward to these games as well. We certainly are.
āWe are not going to have any fear, we are going to go into it and try to be brave and to try and get something from the games.
āWe will have a plan, clearly. Weāve got to show them respect and I think weāve done that in the games when weāve played against Tottenham and Liverpool this season at home. Weāve shown that we can compete with these teams at home, so we are looking to do the same.ā