Midfielder Tronstad was granted some extended leave when joining from Vitesse Arnhem on June 15 given the Eredivisie season didn’t end until May 28, three weeks after the Championship finale.

The 27-year-old Norwegian has now had his visa approved in time for him to join in with training for the first time on Saturday when he will officially become a Rovers player.

Sigurdsson’s case has been more complex, having used a FIFA ruling to join on a one-year contract from Russian side CKSA Moscow.

Rovers also took advantage of the new work permit ruling brought in by the Football Association in conjunction with the Home Office to allow clubs to sign up to four players who wouldn’t otherwise qualify.overs alsoit

The 24-year-old required international clearance and visa approval which are in the process of being finalised.

The expectation is that it will be in to next week that Sigurdsson can join in with training for the first time, but it will be a positive step as the squad takes shape for the upcoming season.

Players are able to train upon receipt of their work permit, but cannot play in a competitive fixture until receiving international clearance.

The Rovers squad returned to Brockhall on June 20, including Niall Ennis who was first through the door this summer.

Internationals Dom Hyam and Thomas Kaminski were given a further week off having been with the Scotland and Belgium squads respectively, with Rovers hoping to have their full compliment of players training ahead of the Accrington Stanley friendly on July 8.

The late arrivals of both Tronstad and Sigurdsson mean it will be unlikely that they will feature in the opening friendly at the Wham Stadium next Saturday, but will be part of the squad travelling to Austria ahead of the second close season match against TSV Hartberg on Saturday, July 15.

Ennis, Tronstad and Sigurdsson ensured that Rovers hit the self-imposed target of three signings by the end of June.

The club are taking stock of their next moves, with at least the same number targeted.

Rovers are expected to dip into the loan  market, which tend to come later in the window, while further business will also be impacted by any potential outgoings.

At this stage however, the only bid received has been that for Lewis Travis from Millwall which was swiftly rejected