Neil Harris believes Millwall are about to enter a 'season-defining' period, starting at Birmingham City on Saturday afternoon (kick-off 3pm).
The Lions haven't lost a Championship fixture since New Year's Day and will be hoping to continue their impressive form given that their next five League opponents - Birmingham, Sheffield Wednesday, Burton, Sunderland and Hull City - are all currently in the bottom half of the table.
"We have six games in 21 days, they will go a long way in defining our season," the manager told millwallfc.co.uk ahead of the trip to St Andrew's.
"We have to make sure we are ready for all of our games and it has been difficult for me to pick a bench lately, let alone picking a team. Competition for places is so intense at the moment and nearly everyone is fit and firing.
"We have a healthy squad and everyone wants to be involved. It's a good position to be in going into this match at Birmingham."
The Blues are in 20th place after their derby defeat to Aston Villa and will be eager to pull clear of the Championship's congested lower reaches with a win this weekend.
"It's a tough place to go, playing a team that is below us in the League," Harris added.
"They are battling at the moment and will want to chase us down - that will make it even harder for us on Saturday.
"We are confident but not arrogant going into this one. The boys are in a good place and there's a really great spirit within the camp at the moment.
"There is going to be a great atmosphere in the stadium and we're looking forward to it."