The Sky Blues suffer first defeat of 2016 as Forest put six past sorry City at the Alan Higgs Centre...
Coventry City Under-21s' poor second-half performance saw them concede six at home to Nottingham Forest.
The Sky Blues went in at the break on level terms but conceded four goals against Forest in the second 45 minutes to suffer a poor defeat at home.
City started the stronger and dominated the first 45 minutes as Bassala Sambou should have put City ahead in the first minute when he curled over from Jak Hickman's through-ball.
Forest took the lead against the run of play in the 9th minute when James Thorne's low shot was deflected in but City replied seven minutes later when Ruben Lameiras found space past three defenders to cross for Reece Ford to slide home.
The Sky Blues took the initiative and went ahead just before the half-hour. Lameiras tried an audacious volley from the edge of the area which fell for Jordan Shipley to slam home.
It was a defensive error which saw Forest draw level when Jorge Grant's long-range shot somehow found it's way past Corey Addai.
It was a second-half which just seemed to get worse and worse for the Sky Blues. Goals from substitute Ryan Yates and Gerry McDonagh put the away side into a two-goal lead with 30 minutes remaining.
Forest only had to wait another three minutes for their next goal as Deimantas Petravicius' deflected effort found the net and the scoring was complete 10 minutes later as substitute Kasheme Walton tapped home from the left-sided low cross.
Maycock and Hickman had late efforts saved as the Under-21s start off 2016 with a disappointing performance.
Coventry City: Addai (GK), Whitmore, Ford, Harries, Di. Kelly-Evans, Maycock, Shipley, Hickman (Leahy 86), Lameiras, Hendricks, Sambou.
Subs: Thompson, Bayliss, Mantsounga, Finn.
Nottingham Forest: Evitmov (GK), Gabriel (Riera 73), Iacovitti, Rees, Worrall (C), Nielsen, Petravicius (Walton 69), Grant, McDonagh, Walker (Yates 46), Thorne.
Subs: Erlandsson, Todorov.
Yellow card(s): Thorne (55), Walton (78).