Gabriel Martinelli has gone. He has completed a permanent move to Al-Hilal for a club-record fee of £60m, ending seven years at Arsenal in a single transfer that closes one of the defining stories of the Arteta era. He signed a four-year deal in Saudi Arabia, and he leaves as the most expensive player we have ever sold. On the balance sheet this is close to flawless business. As a goodbye to a player who was central to how this side rebuilt itself, it is a good deal more complicated than the number suggests.

The fee is the headline and it deserves to be. £60m, a fixed sum with a sell-on clause reported, comfortably beats the previous record we banked for Alex Oxlade-Chamberlain when he joined Liverpool in 2017. Because we signed Martinelli as an 18-year-old from Ituano for around £6m, almost the entire fee lands as pure profit on the accounting books, and it takes our income from sales this summer past £120m. This is exactly the kind of trade the modern game rewards. It is also the sale of a player who, three seasons ago, was one of the most feared left wingers in England.

The numbers are the case for why this hurts more than a squad player leaving should. Across seven years he made 278 appearances in all competitions and scored 62 goals, 41 of them in 191 Premier League games. Since his debut in 2019, only Bukayo Saka has directly contributed to more Arsenal goals. He ranks second at the club for completed dribbles and for ball carries that end with a take-on, and third for chances created across that span. That is not a fringe forward. That is a player who was woven into the attacking identity of the team through its climb back to the top.

The honours travelled with him. He played his part in ending our 22-year wait for the league title last season, won the FA Cup in 2020 as a teenager, and added the Community Shield in 2023. Away from the club he became a Brazil international with 27 caps, an Olympic gold from Tokyo, and appearances at two World Cups. For a £6m signing from the Brazilian second tier, that is a career that repaid the investment many times over before the transfer fee is even counted.

The football reason is the uncomfortable part. Martinelli's final season was his thinnest in years: 30 league appearances but only 11 starts, his fewest since 2020-21, as he slipped down the order under Mikel Arteta. He was left out of the matchday squads entirely to begin this season, with Christos Tzolis, signed from Club Brugge, starting the opening two league games in the role that was once his. Once a player is out of the squad on the opening day, the decision has already been made. The sale simply formalised it.

That treatment did not pass without objection. Ian Wright, watching Martinelli left out against Coventry, said the situation made him uncomfortable and that the player deserved more respect. Arteta defended the call directly, framing it as an honest football decision delivered with respect rather than a slight. Both positions can be true. Arteta is entitled to move a player he no longer sees as a starter, and Wright is entitled to feel that a seven-year servant of Martinelli's standing earned a softer exit than a matchday-squad omission in front of the cameras. Where a supporter lands on that probably depends on how much they weight loyalty against squad-building, and reasonable people will split on it.

This is the part that should concern us more than the sentiment. Martinelli leaving, on the back of Leandro Trossard's sale to Besiktas in July, strips two senior left-sided forwards out of the squad in a single window. Tzolis has started well and looks a genuine talent, but he is one player, and the depth behind him on that flank is now thin. The pursuit of a marquee replacement went nowhere: Morgan Rogers, Julian Alvarez and Vinicius Junior were all linked, and none arrived.

So we have sold our record earner and reinvested the proceeds into the spine rather than back into the wide areas the sales emptied. It is a defensible strategy if Tzolis is as good as two competitive games suggest and if the fitness holds across four competitions. It is a gamble if either of those things wobbles in the depths of winter. Martinelli rejected a Galatasaray approach worth around £38.9m before Al-Hilal met our valuation, so this was a player we could have kept had we wanted to. We chose the fee and the reset instead.

He leaves with our gratitude, a genuine place in the club's recent history, and the kind of highlight reel that will follow him to Riyadh. The accounting says this is a triumph. The seven years say it is a loss worth marking properly. Both are true at once, and a supporter is allowed to hold them together.