Having mustered 15 points from as many matches, the home side are in 11th position and one place behind Tromso, who have played two games more.
Match preview
Rosenborg are sitting just one point above the drop zone after winning five, drawing three and losing seven of their 15 league matches.
They may have kicked off July with a narrow 2-1 win over Odd, but Rosenborg could only take one point from their final two games of last month.
Rosenborg fell to a heavy 4-1 defeat against Sarpsborg, before they played out an entertaining 2-2 draw in their most recent outing against Fredrikstad following goals from Jesper Reitan-Sunde and Ole Saeter.
Having shipped 29 goals in 15 matches, Alfred Johansson's side currently have the third-worst defensive record in the top flight, highlighting a key area for improvement if they are to move away from the drop zone.
However, they can at least fared in their recent home outings, collecting seven points from their last three league games at the Lerkendal Stadion.
Meanwhile, Tromso may be sitting just one point above the bottom three, but they will carry significant momentum into the weekend after putting together a four-game unbeaten in all competitions.
Tromso, who finished in third spot last year, began their fine run of form with narrow away wins over Stromsgodset and KuPs in the Eliteserien and Europa Conference League qualifying respectively.
They went on to play out a goalless draw with Kristiansund, before they recorded a narrow 1-0 victory in Thursday's second leg against KuPs, ensuring they have now gone four consecutive games without conceding.
They will be looking forward to Thursday's first leg against Kilmarnock in the third round of Europa Conference League qualifying, but before they can turn their full focus to that clash, they must negotiate an away league game against Rosenborg.
The visitors will fancy their chances of taking something from the contest, having won three and drawn two of their last five competitive away games.
Rosenborg Norwegian Eliteserien form:
W
D
L
W
L
D
Rosenborg form (all competitions):
D
L
W
L
W
D
Tromso IL Norwegian Eliteserien form:
L
W
D
L
W
D
Tromso IL form (all competitions):
D
L
W
W
D
W
Team News
Rosenborg are likely to be without Markus Henriksen, Adrian Pereira, Jayden Nelson and Jonathan Augustinsson.
Defender Leo Cornic, who was on the bench last weekend, could be part of the opponents' matchday squad after completing a move to Tromso earlier this week.
After coming off the bench to score an equaliser against Fredrikstad, Saeter could be brought into the side to feature in a front three alongside
Meanwhile, the visitors remain without the services of defender Miika Koskela, who has been out of action since last year.
Felix Winter could be presented with a starting opportunity after he was introduced as a half-time substitute in the second-leg win over KuPs.
Mamadou Thierno Barry, who dropped down to the bench on Thursday, may be considered for a recall, having started Tromso's last four league matches.
Rosenborg possible starting lineup:
Tangvik; Reitan, Konradsen, Nemcik, Jenssen; Tagseth, Selnaes, Nypan; Broholm, Reitan-Sunde, Saeter
Tromso IL possible starting lineup:
Haugaard; Barry; Guddal, Skjaervik; Paintsil, Winter, Hjerto-Dahl, Antonsen, Norheim; Romsaas, Nordas
We say: Rosenborg 1-1 Tromso IL
While Rosenborg have three home league games without defeat, Tromso will head into the weekend off the back of a five-game unbeaten away run in the top flight.