Unai Emery made a number of strange decisions on Wednesday night as Arsenal lost 2-0 to Tottenham in the Carabao Cup quarter-finals.
Despite having Laurent Koscielny on the bench, the Spaniard started Granit Xhaka alongside Sokratis Papastathopoulos at centre-back.
Alexandre Lacazette, who scored in the 4-2 win over Spurs two weeks ago, also only made the bench as Alex Iwobi and Henrikh Mkhitaryan occupied the flanks.
But the most bizarre call made by Emery was not including Mesut Ozil in his squad at the Emirates Stadium.
Ozil recently recovered from a back injury and is fit to play, yet Emery omitted the German and made him watch the game from the stands.
And why? For "tactical reasons", according to Arsenal's manager.
Arsenal lacked creativity without Ozil, especially in the second half, and now there are concerns over his future at the club.
Leaving out your most creative player for a north London derby is very odd, so Arsenal fans are now wondering what on earth is going on.
Emery was asked three questions about Ozil's absence in his post-match press conference and even the journalists present have noted how bizarre his responses were.
Not once did the 47-year-old try to clarify Ozil's future at Arsenal, despite being given several chances to do so. Here's what was said:
WHY WAS OZIL NOT INVOLVED?
"It was tactical. I thought the players today with us were the best for this match."
WILL OZIL BE SOLD IN JANUARY?
"I am thinking of the match, I am not thinking about another situation."
HAS OZIL GOT A FUTURE AT ARSENAL?
"Every player is important. One I decided didn't play, it was a tactical decision."
Emery seems to have a big problem with Ozil that stretches further than the German simply not suiting his philosophy and style of play.
How Arsenal's manager lines up his side to face Burnley on Saturday will be very interesting.