Leeds boss Garry Monk accepts Newcastle are "an exceptional team" as they close in on a swift return to the Premier League, but is determined his play-off chasing side will head to St James' Park with belief they can dent the promotion charge.
Ritchie, caught by Charlie Taylor late in the game, was replaced by fit-again Yedlin for the last few minutes.
Chris Wood netted his 25th Championship goal of the campaign to secure a last-gasp equaliser for Leeds United against Newcastle United.
Interest in their clash has been huge with tickets having sold out weeks ago despite the Sky TV coverage and there will be a battle on the sidelines as well as on the pitch with two of the most vocal sets of supporters in the country likely to fill St James' Park with noise.
Huddersfield kept alive their slim automatic promotion hopes with Collin Quaner's victor six minutes into injury time earning them a 3-2 victory over Preston. "I am pleased with the performance of the team, the commitment, the passion, the way we played the chances we had", said the Spaniard.
Jordan Hugill nodded North End level with 11 minutes remaining before the Preston striker conceded a stoppage-time penalty for an off-the-ball incident with Kachunga, and though Aaron Mooy's spot-kick was saved by Chris Maxwell, Quaner tucked away the rebound.
"We have to be proud of the players, but disappointed not to get the three points".
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I just hope we can make it in the top three at nationals, and that would be just so exciting". Utah gymnastics freshman MyKayla Skinner has topped the charts throughout the regular season.
We expect the Toon to win this one as well.
But this, bar that late lapse, was the best Newcastle have played at home all season.
"If we finish first, then all the better, but we just want to play as well as we can".
"I am just so upset there have been so many games I have seen things I don't understand, so logical I start to think about things".
"Jonjo Shelvey, Dwight Gayle and Matt Ritchie - they're all £10million players". We'll see if Dan [Malmo Sporting Director] has a place for me.
Blackburn won for the first time eight games as Tommie Hoban powered in from Connor Mahoney's corner at the City Ground.
Leeds come into this round of fixtures in fifth place, with a three point lead over Sheffield Wednesday in sixth.