The January transfer window comes at a crucial time of the season for league leaders Portsmouth, who are currently in a slump after an exceptional start to the season.John Mousinho’s side have won just one of their last six league games, opening the door for the likes of Peterborough, Derby County and Bolton Wanderers to all have the chance to move above Pompey in the league table in the coming weeks. Pompey’s concerns are compounded by long-term injuries to Alex Robertson and Regan Poole, with the pair unlikely to feature in the league again this season. TheFratton Park faithful will want to see more transfers in the coming weeks as they look to learn from the failed promotion attempts of years past. Goalkeeper Matt Macey is the only signing so far this window and Mousinho may need to be active if he is to keep his side at the top in May.Luton Town sign and return Reading academy graduate on loanPremier League side Luton Town have confirmed the signing of Reading academy graduate Tom Holmes, which will see him return to the Royals on loan immediately until the end of the season. The 23-year-old will make the switch for an undisclosed fee, but still has the chance to add to his 129 appearances in the final months of the season.Speculation about Holmes dominated the pre-match line-up for the Port Vale game, which was later dismissed, and it is suspected that his sale and Nelson Abbey’s accepted offer contributed to match-day protests against the owner.Reading’s statement congratulated Holmes on the move. It read: “Everyone at the club would like to congratulate Tom on his move and look forward to working with him for the rest of the season.”.