The flu bug has dominated the "Dancing with the Stars" competition this season. Derek Hough had to sit out a few weeks ago and on Monday night, Lacey Schwimmer was replaced by Anna Trebunskaya to partner Mark Dacascos.

Mark spoke to Lacey earlier in the day and reported to ET, "She's getting a little bit better, but still not 100%." Meanwhile, the other pro dancers and celebrities are fighting through the sniffles and coughs as they samba, quickstep, and foxtrot closer to the coveted mirror ball trophy. As Donny Osmond spun partner Kym Johnson in their quickstep, the under the weather entertainer felt as if "the room was spinning around."

Aaron Carter, who was awarded with "Len's first ten of the season," put his game face on, saying, "Nothing could take me from this competition, no flu, nothing."

Though rest may be the best way to remedy the flu, the remaining seven couples have been getting very little of that. In addition to their individual dances, the couples formed two teams-Team Tango and Team Paso. Anna Trebunskaya commented, "Michael Irvin is sort of at home because he's used to working the team."

The former Dallas Cowboy snapped his teamwork skills into action in rehearsal. He explained there is no "I" in "team," saying, "Tension isn't a bad thing, it's just [when it's] placed in the wrong place it could be a bad thing. All of the professional dancers that wanted to choreograph...that's a good thing. It's just a matter of putting that passion in the right place in the team atmosphere."

The magnificent seven couples dwindle down to just five on Tuesday night's double elimination on ABC's "Dancing with the Stars."