Three climbs of the Mur de Huy, including the race finish on the summit, are the signature of the 199km La Fleche Wallonne course.

After 84km of racing, the race tackles the first of 11 climbs on the three laps of the undulating circuit, the Cote de Bellaire, which at one kilometre in length is the shortest of the race.

The Cote d’Ahin follows, the longest climb of the punchy circuit at 2.5km in length, before the first ascent of the Mur de Huy at the 111.5km point.

The fierce 1.3km ascent has an average gradient of 9.3 per cent but its ramps touch up to 26 per cent at one point and are regularly more than 15 per cent.

Literally translated as the Wall of Huy, it must be tackled twice more – at 175.5km and at the finale of the race.

In between, the Bellaire and the Ahin must be tackled once more, while the Cote d’Ereffe – 2.1km at 5.9 per cent – features twice, and the short, sharp Cote de Bohisseau and longer, slightly flatter Cote de Bousalle must be crested once each.

The last ten races have all been win from a sprint up the famous Wall, and the most fierce in the one-day Classics season is all set for more drama again this time out.