Derby were sucked back into the Championship relegation dogfight as they suffered a 1-0 defeat at fellow strugglers Coventry.
Derby boss Wayne Rooney had shuffled his pack with six changes from the side which suffered a 4-0 drubbing at Cardiff in midweek.
But the Rams, who earlier announced that they would be stopping taking a knee before kick-off, were left reeling as Max Biamou netted for Coventry, a cool finish which ultimately proved the difference between the sides.
It was a vital win for Coventry, who are reportedly close to finalising a deal to return to the Ricoh Arena next season.
They moved alongside Derby, six points above the bottom three.
Arguably, the visitors did not do enough to take anything from the game, struggling to create clear-cut chances while the Sky Blues looked the more dangerous.
Coventry, who had made two changes from the 2-1 home defeat to Middlesbrough in midweek, got off to a fine start.
Clarke saw a far-post header go wide while, at the other end, Leo Ostigard sent an effort over as Coventry went into the break with a slender advantage.
Both sides came out with plenty of endeavour after the break but found it hard to fashion clear chances.
The Rams' seven-goal top scorer Colin Kazim-Richards, who netted in a 1-1 draw against Coventry earlier this season, flashed a header wide.
Biamou could have had his second as he hit a well-struck effort wide after beating the offside trap while substitute Louie Watson blazed off target from distance as the visitors became more desperate.