Reginald Pecock, Bishop of St. Asaph, attacked Lollardy from this cross in 1437 but himself did public penance there in 1447 (by which time he was Bishop of Chichester) before a mob of 20,000 and the Archbishop of Canterbury, throwing various examples of his own heretical writings into a fire.
Since you like to throw examples, there is a bunch of success stories much more fitting to Neymar's situation - Pato and Kaka (both under Ancelotti by the way), Ronaldo, Ronaldinho and even Adriano who was doing pretty well and fell off the wagon already at an older age.