Scott Redding laid the blame for his Thursday afternoon Assen Moto2 fall firmly at the door of a 'cruising' Toni Elias.
Redding lowsided from his Marc VDS Kalex as he attempted to avoid Elias, but the defending champion was also brought down when a sliding Redding hit his rear wheel.
Elias was unharmed, but Redding took a blow to his right knee.
"I got caught out by Toni Elias cruising for a tow,” said Redding, who finished on the podium at the previous Silverstone round. “He let Andrea Iannone go past and then pulled right in front of me when I was on a fast lap.
“I tucked the front a few times trying to get the bike stopped, but there was no way I could avoid him and down we both went. Cruising for a tow is dangerous and it's happening more often in both practice and qualifying.
“I took a big bang to my right knee, which has swollen up pretty good, but I don't think it's going to affect me too much on the bike tomorrow. I hope not, anyway."
Elias felt he had been taken out: “Redding took me out from behind and I couldn't do anything to save it. We were unlucky.”