Mikel Arteta said he was happy that Arsenal had signed a number of top-quality players in the early stages of the transfer window, and that they had given the Premier League club impetus to raise their level in the coming season.
Runners-up for the last three seasons, Arsenal have signed winger Noni Madueke and goalkeeper Kepa Arrizabalaga from Chelsea, as well as midfielders Christian Norgaard from Brentford and Martin Zubimendi from Real Sociedad.
"They bring new excitement, a new energy as well," Arteta told reporters in Singapore on Monday ahead of a pre-season match against Serie A side AC Milan.
"We signed very important players as well. Again, everybody feels like their height has to go to a different level, and that's what we're seeking," he added, according to Reuters.
"Ideally, you want it (transfers) done on day one in pre-season. We've done very, very well so far. I'm very pleased with the way the club is supporting the necessities and improvements that we required in the team."
Swedish striker Viktor Gyokeres, who scored 54 goals in 52 games for Sporting last season, is also expected to move to the Emirates Stadium.
"There's still a long time in the window, and we are seeking. In terms of numbers, we are short, and we have to improve the depth and the quality of the squad," Arteta added.
"We are constantly looking in the market, but until that happens, I can focus on the players that we actually have, work with them, and I'm very pleased with what I've seen so far in the first 10-15 days."
Arteta briefly spoke about former player Thomas Partey, who was charged with rape and sexual assault this month, after leaving the club at the end of last season.
"I think the club was very clear in its statement. There are a lot of legal matters that are very complicated so I cannot comment on any of that," Arteta said.
Asked if he felt like the club had followed the right processes in dealing with the issue, he replied: "100%, yes."
