Aaron Bouwman, a regular player for Ajax under new coach Míchel Sanchez, is expected to miss action in September. This is due to an injury he sustained from a tackle by Ruben van Bommel, which left him with a bruised sternum and a bruised lung. Bouwman was substituted out due to the injury from Van Bommel, who received a yellow card for the tackle. Thilo Kehrer, who signed with Ajax in the transfer window, made his debut for the club against PSV, replacing Bouwman after he was forced off. De Mos lives with Bouwman's situation, stating that the injury is very unfortunate and that Bouwman could have been a candidate for the Dutch national team.