Belgium surrendered a two-goal lead against Russia to draw 3-3, leaving Roberto Martinez frustrated with his side.
Belgium came from a goal down to lead at the break, thanks to a brace of headers from Benteke, after Mirallas levelled from the spot.
Chadli was involved in both goals scored by Benteke and created chances in the second half, that Benteke and Alderweireld could not make count.
Martinez’ men were punished for missing those chances, as Russia got back into the game thanks to goals from Miranchuk and Bhukarov.
“I do not hide it, I’m very disappointed,” he said, as quoted by Het Nieuwsblad. “We came here to play a good game and we must never relinquish a 3-1 lead.
“I see several reasons why we were so bad in the last 20 minutes. The six substitutions I’ve made have not done well. Then the intensity fell off, the team dropped their concentration and the result is goals.
“Sometimes there were individual mistakes, but that can happen, after making mistakes you become stronger.
“It is also a friendly match so you must put everything into perspective. But it is no excuse.”