• Manuel Pellegrini needs a win to have a chance of overhauling Juventus • Yaya Touré fit but Sergio Agüero misses out with injury

Manuel Pellegrini has denied Manchester City struggle without Vincent Kompany despite the side having markedly poorer results when the captain has been absent this season.

City are again without the Belgian for Tuesday evening’s match, their final Group D game, at home to Borussia Mönchengladbach. Kompany is unavailable because of a calf problem, and on Saturday City lost 2-0 at Stoke City in a display that featured some of the side’s poorest defending of the campaign.

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Kompany missed the game and has played in only eight of City’s 15 Premier League matches this season. His value is illustrated by them being unbeaten in those games, winning six and conceding only once. The centre-back’s appearances have coincided with seven clean sheets, while 20 of a possible 24 points have been claimed.

In the seven league outings without the Belgian, City have conceded 15 goals, won three times, lost four and taken only nine points from the 21 on offer.

In the Champions League Kompany also led the team in their finest display, the 3-1 victory at Sevilla on 3 November.

“Last season we finished the last six games without Vincent Kompany,” Pellegrini said. “We won the six and had four clean sheets. It depends on the performance of individual players, it depends on a lot of things. In the last two years we played a lot of games without important players.”

Sergio Agüero also remains injured because of the kick on his heel that he suffered in the victory over Southampton in November. Manchester City need to beat Borussia Mönchengladbach and also hope that Sevilla can also win against Juventus – who have defeated City home and away – to win the group and have a better chance of getting a favourable last-16 draw.

Yaya Touré is fit to face Mönchengladbach following a slight muscle problem but though Pellegrini denied his side were too reliant on the Ivorian, Agüero, and Kompany, he did admit that Manchester City’s performances have been inconsistent. The whole season there are a lot of games we played without our important players. We must make a balance of the whole season.”

When pushed on whether the striker Wilfried Bony and central defenders Nicolás Otamendi and Eliaquim Mangala had stepped up as replacements for Agüero and Kompany respectively, Pellegrini said: “I analyse individual performance with the players not with the press.”

Pellegrini suggested Agüero may miss Saturday’s visit of Swansea City. “It is an injury that he cannot work [train],” the manager said. “He needs time to recover from that problem. It is not a serious injury it is a pain injury.”

He is not certain the Argentinian will return to training this week either. “We hope but we will have to see how he improves. If he can run with normality he can do it.”

Pellegrini hinted that Kompany remains some way off a return to the first team squad. “Vincent is improving,” he said. “He is doing some tests with his calf. We will see in the next days how he improves.”

The manner of the loss at Stoke concerns Pellegrini and he compared the result to the 4-1 league defeats by Spurs and Liverpool. “We didn’t do well against Tottenham or Liverpool but we have had a lot of clean sheets also,” he said. “We are not a consistent team in some games.”

The 62-year-old will not rest any of his key players against Borussia Mönchengladbach despite a long injury list.

Martín Demichelis has a tendon problem, the manager said, and is ruled out along with Fernando, who injured a hamstring at Stoke.

In total City are missing six players as Samir Nasri (hamstring) and Pablo Zabaleta (knee) are ruled out, too.

Yet despite drawing Barcelona in the last 16 when finishing second in the group in the past two seasons, Pellegrini struck an optimistic note should City do so again.

“The most important thing was to qualify,” he said. “The game on Tuesday is not the same thing, that if you need to win to qualify. Chelsea, Manchester United and Arsenal would like to be in our position.

“If you don’t finish at the top of the group, I don’t think it is disappointing. If we win and Juventus beat Sevilla, I think Juventus is the best team in the group. I don’t think we have to be always pessimistic about the draw.

“Maybe if you finish top you have an important draw against a team that finished second in their group.”