Celtic are chipping away in their mission to land new signings and could turn their attention to the Premier League in their bid to strengthen the ranks.

Celtic close in on several summer deals

Kieran Tierney has already returned to Parkhead after leaving Arsenal on a free transfer, signalling the first domino of Celtic's window falling ahead of what is expected to be a busy period for Brendan Rodgers.

Swiftly moving on to new targets, the Bhoys are working on a deal to sign Albirex Niigita defender Hayato Inamura in what would be a return to the Asian market after success stories such as Daizen Maeda, Reo Hatate, and Kyogo Furuhashi.

Nordsjaelland winger Benjamin Nygren is expected to sign for Celtic as the club close in on a £2 million capture for the Swedish international, albeit he isn't expected to be the sole answer in the forward areas.

Despite rumours linking Daizen Maeda with a move away from Glasgow's east end, the Japan international appears to have put any notion of an exit to bed after his exceptional 33-goal campaign last term.

He stated: "I really enjoyed playing in the Champions League this season because there were so many games and it gave us a lot of different challenges.

"I think the new format has been great and I am excited to try it again this upcoming season. It helped me improve."

Looking to build on another excellent campaign, Rodgers could now move to strengthen his midfield with a familiar face who shot to prominence in the Premier League last season, per recent developments.

Celtic set to step up move for Andy Irving

According to Football Insider, Celtic are set to step up their efforts to land West Ham United midfielder Andy Irving following his maiden cap for Scotland against Liechtenstein.

After keeping tabs on his situation, the former Hearts man is said to be open to a move to Glasgow and will be allowed to leave the London Stadium amid his bit-part role under Graham Potter.

Labelled someone with "great passing ability" by Robbie Neilson, Irving made 11 appearances across all competitions for the Hammers last season, though could now be on the move despite his capacity to operate in a deeper-lying role or as a number eight.

Celtic have long been on the lookout for a competitor for Callum McGregor, and the West Ham man could also help to satisfy homegrown quota legislation if they end up in the Champions League or Europa League league phase.

While it remains to be seen how much he would cost, landing a Scotland international on a relatively cheap deal would be smart business as the Bhoys look to continue their domestic dominance.