Asked about the rumoured first refusal/buy-back clause that has many supporters blaming Wenger for Cesc choosing Chelsea over Arsenal (as if that was ever a choice for Fabregas in the first place):

We'll have to discuss that some day, all the terms...it wasn't as clean as [reported]. I cannot speak [about it] now.

Worth remembering all the previous quotes from Wenger about this subject:

I personally believe that [the Cesc to Chelsea] deal was done a long time ago, early 2014. When I was informed [Cesc was available] the [Chelsea] deal was already done.

Also worth remembering what Mourinho has said:

If you ask [Fabregas] if he’d choose a different option [than Chelsea], he’d say no. I spoke with [Fabregas] and after 10 minutes he was telling me he wants to join us.

Regardless of whether we wanted him back or not, Fabregas would have chosen Chelsea in any event. According to Wenger, the deal was done early 2014 without even consulting Arsenal. He was then informed Cesc was available, but by then the deal was done. The Cesc fanboys will continue believing that he wanted to come back to Arsenal but was shot down, but in reality it was never on the cards.