According to James Ducker of the Daily Telegraph, the Gunners are keen to strengthen their defensive options after a disappointing start to the Premier League season.
It's noted they would face competition from Manchester City for the Northern Ireland international. Pep Guardiola's side will make a third offer worth up to £30 million for the West Brom man, according to the article, while Leicester City have also seen a £21 million bid turned down.
"Arsenal had a bid for Evans rebuffed by West Brom last year, but Arsene Wenger wants to sign a centre-half after his side's calamitous start to the season and could look to muscle in on City's efforts to sign the player," Ducker wrote.
According to James Whaling of the Daily Mirror, the Gunners are close to letting Shkodran Mustafi leave to join Inter Milan, meaning more defensive reinforcements would be needed. Gabriel Paulista has also left the Emirates Stadium for Valencia.
As noted by Mark Ogden of ESPN, Arsenal have been pitiful in their work at the back so far this season:
Mark Ogden @MarkOgden_
Arsenal have now conceded seven goals in 3 PL games. And lucky to win the first one v Leicester..2017-8-27 16:18:25
Evans would potentially stiffen up this area of the team, with the Gunners lacking dependable and combative players in the position.
While the centre-back was deemed not good enough for Manchester United by Louis van Gaal, he moved to the Hawthorns in 2015 and has continued to add to his excellent reputation. Under manager Tony Pulis, the 29-year-old has blossomed into the leader of the West Brom defence.
There are numerous excellent attributes to his game. Evans enjoys the physical battles that are part and parcel of the Premier League, though there's more nuance to his play than the quintessential British defender.
Evans, who was brought through the United academy, spots danger well and tends to distribute with precision when on the ball.
James McNicholas suggested he would be a smart capture for Arsenal:
I actually think Jonny Evans would be a really good signing for Arsenal. Suspect I'll be in the minority there.2017-8-29 10:39:44
As mentioned, Evans may not be deemed good enough for some to improve a side like the Gunners, nor is he the most glamorous signing the club will make in the window. But that may be exactly what Arsenal need.
Too often in recent years this team has wilted under defensive pressure, with players at the back lacking the discipline and concentration to get through tough spells. Evans has shown throughout his Premier League career he does not fall into that bracket.