Early on in the race , it appeared that van Aert was n't at his best today .
It was a wood chip stuck in Aert 's derailleur on the second lap that put van Aert back Aert 's his heels .
Early on in the race , it appeared that van Aert was n't at his best today , but it was a wood chip stuck in his derailleur on the second lap that put van Aert back on his heels .