While the Swans have seven points to their name courtesy of two wins and a draw, the Lions sit two points adrift after claiming just one league win in September.
While there is no doubt that Swansea are missing the presence of Liverpool loanee Rhian Brewster, tightening up at the other end has helped them impress during the early weeks of this season.
Although tougher tests lie ahead, Steve Cooper will be delighted with a return of seven points, leaving the club in third position heading into the weekend.
Cooper is biding his time before looking to sign another forward, presumably on loan from a Premier League side, and it has provided Jamal Lowe and Andre Ayew to strike up a double-act in the final third.
With Morgan Gibbs-White also emerging as a key man after his loan move from Wolverhampton Wanderers, everything is moving in the right direction ahead of their next outing.
Based on their current form, Millwall should provide Swansea with their most difficult challenge to date after holding Brentford to a draw last weekend.
Like his opposite number, Lions boss Gary Rowett will be desperate for a better return in the final third, but he will be proud of their efforts at the back.
The solitary goal which they have conceded came from the penalty spot, meaning that two of the best three defences in the division will be going head to head on Saturday.
Millwall collected four points from their double-header against Swansea last season, three of which were earned from a 1-0 win in the clash at the Liberty Stadium.
Swansea City Championship form: WDW
Swansea City form (all competitions): LWDW
Millwall Championship form: DWD
Millwall form (all competitions): WDWWLD
Rowett will contemplate a change in the Millwall attack with Tom Bradshaw failing to make an impact against Brentford.
Cooper is likely to stick with the same starting lineup for the fourth match in succession.
Swansea City possible starting lineup:
Woodman; Cabango, Rodon, Guehi; Roberts, Smith, Grimes, Bidwell; Gibbs-White; Lowe, Ayew
Millwall possible starting lineup:
Bialkowski; Hutchinson, Pearce, Cooper; Romeo, Leonard, Woods, Malone; Wallace, Bennett; Bodvarsson
We say: Swansea City 1-1 Millwall
With these clubs possessing two of the best defensive records in the second tier, do not expect many goals in this game. While Swansea will look to make most of the running, they do not have the firepower to put themselves into a commanding position, something which should allow Millwall to earn a share of the spoils.