Celtic's defensive line is getting a much-needed boost with the return of Alistair Johnston to training, offering Manager Martin O'Neill a key piece for the crucial final stretch of the season. The right-back, sidelined since October with a hamstring injury, had his recovery complicated by an issue on international duty with Canada, but his full participation in team training signals a significant step forward.

O'Neill expressed clear optimism, stating, "He trained with the team today, which was very encouraging... he is coming out well now so we would need him really, as soon as possible." The hope is that a full week of training could see Johnston back in contention, providing vital experience and stability on the flank.

However, the news is far less promising for fellow defender Julian Araujo. The on-loan Bournemouth player, who returned to his parent club to rehabilitate a thigh injury, has suffered a major setback. O'Neill confirmed the blow, saying, "Julian re-injured himself under supervision at Bournemouth... I don't think we will see him for the rest of the season." This likely ends his loan spell prematurely and casts doubt on his availability for upcoming international commitments.

The right-back position has been a challenge for Celtic, with a third option, Colby Donovan, also ruled out of this weekend's clash against St Mirren due to a hamstring issue. Donovan is expected to miss next week's Scottish Cup tie as well, though O'Neill is hopeful his absence will be short-term. The imminent return of Johnston, therefore, couldn't be more timely as Celtic look to secure silverware on multiple fronts.