It was one of the soap opera transfer sagas in January with rivals Manchester United winning the signature of the Chile international in a swap deal with Henrikh Mkhitaryan.
However, reports have emerged on Saturday claiming that the Arsenal manager would do things differently if he had the opportunity again.
Apparently, Wenger would not have stood in the way of Sanchez joining Man City after they offered a mega-money bid on deadline day in August if he "had his time again".
It was his stubborness to find a suitable replacement which saw the deal stall as the London club did not have sufficient time to land Monaco's Thomas Lemar.
Nevertheless, it was clear that Sanchez wanted to leave and his lack of commitment and performance for Arsenal in the first-half of the season reportedly shows this as he only managed eight goals in 22 games.
Despite not securing Lemar, Wenger would have some luck as Borussia Dortmund striker Pierre-Emerick Aubameyang arrived at the Emirates in January in a record move and will be a great addition to the attacking line-up. Every silver lining.