With just three wins from 29 games, the Blues find themselves nine points adrift of Premier League safety - effectively 10 due to goal difference.
That gap could widen if Wolves get anything from their home game against West Ham tomorrow night, with Ipswich then taking on Bournemouth, at the Vitality Stadium, on Wednesday night.
Then, on Saturday, it's Ipswich versus Wolves at Portman Road.
Asked if he'll watch Wolves' midweek game, McKenna replied: “No, I don't think I will. Our focus needs to be on ourselves. We know we need to go and deliver performances and get points on the board at a really, really high rate over the next nine games.
"Of course we'll check the score but I think I'll save my mental energy for the things we can try and control."
He continued: “It's an important week for us. Of the nine remaining games, we've got two in four days.
"Look, there's 27 points to play for and nearly a quarter of the season left so we know, from a points perspective, we're certainly still in the fight and we know that things can change really, really quickly this week with one positive result or two positive results.
"So there's still absolutely that belief that we can compete until the end of the season in terms of league positions.
"Irrespective of that, we've got a quarter of our first Premier League season in 22 years left. I think whether we were 16th, whether we were one point off the line where we want to be, or we were 24 points off the line of where we want to be, I couldn't really understand or legislate for any difference in the mindset here and the difference in how we prepare and the difference in how we go to the games.
"We need to go to every game, give absolutely everything we've got and try to do ourselves and our supporters proud. Hopefully we get good results from that and that'll leave us at the end of the season in a position that we're really, really happy with.
"That's still absolutely the focus and belief and we hope that a good week this week can really contribute to that. I don't see that changing anytime soon."