Kieran Tierney could be back for Arsenal's clash with Watford this weekend and Mikel Arteta is welcoming the selection dilemma that poses with the in-form Nuno Tavares.

Scotland full-back Tierney has not featured for the Gunners in their past three matches due to a bruised ankle and speaking after their 2-0 win over Leicester City last time out, boss Arteta did not sound confident of a return this weekend.

But Tierney has resumed training this week and may face the Hornets, though Arteta was reticent to confirm his availability for Scotland over the upcoming international break.

"Kieran has been training in the last two days. He's been feeling much better, so hopefully, he will be able to be available," Arteta said at a pre-match news conference.

On featuring for Scotland he added: "Let's see how he's feeling in the next few training sessions. 

"He's done bits with the team but hasn't fully trained yet, so in the next two days we will see where he is and how he's feeling."

In the absence of Tierney, Tavares – signed from Sporting CP for £8million in July – has excelled, and it is this sort of selection headache Arteta revels in.

"Hopefully we can have more of those dilemmas and we can have top players performing at the top level in many positions because that only raises the quality, the standards and the performance of the team," he said.

There were mixed emotions for Arsenal's English contingent this week, with goalkeeper Aaron Ramsdale joining Bukayo Saka in the squad amid an impressive run of displays.

But attacking midfielder Emile Smith Rowe and centre-back Ben White were both surprise omissions by Three Lions boss Gareth Southgate, despite a series of fine performances.

"Gareth has to make so many difficult choices and has got so many options. What I like is that our players are performing at a level that I'm sure they give problems to Gareth and the coaching staff," Arteta said.

"That's what pleased me. I know they have the level to do it and it will about the time or when the manager decides it is the right moment to select them.

"I think he [Smith Rowe] should be happy if people are gutted or if they're questioning the decision because it shows the level he's playing at. 

"Like anything in Emile's career, it will come in the right moment. We don't know if now is the right moment. Gareth knows much better than us how to judge what he thinks about the role he could have in that team. 

"If he's decided it wasn't the right moment, I'm sure it was a very thoughtful process and the right decision."

Ramsdale's form in particular has led to some suggestions he could usurp Jordan Pickford as England's first-choice goalie.

"Well, I'm really happy for him to see him back there. The rest are decisions that Gareth and the coaching team has to take," Arteta said.

"What Aaron needs to do is keep performing and be humble. The decisions are done by someone else."