Henderson was substituted at half-time after complaining of a tight hamstring during the Reds’ 1-0 win at Huddersfield Town on 20th October.
Keita, meanwhile, has missed Liverpool’s last three games after similarly sustaining a hamstring injury whilst on international duty with Guinea earlier this month.
The 23-year-old underwent numerous scans after going down and being helped off the pitch by a teammate in Guinea’s Africa Cup of Nations fixture against Rwanda.
The duo are both in line to return to full team training this week – although Keita is more likely of the two to make a complete recovery in time for the weekend.
The Guinean returned to the training pitch last week – albeit limited to running laps with the Reds physio at Melwood.
Speaking last week, Liverpool boss Klopp confirmed both Henderson and Keita were in ‘a good way’ – although they would have to miss Cardiff’s visit of Anfield last weekend.
“They are both in a good way but they will not be ready. That’s pretty much it though – the rest, apart from [Alex] Oxlade-Chamberlain and Rhian [Brewster], should be available,” he said.
The German will welcome the two midfielders back to the fold, although it is possible that he will stick with his current choice in the centre of the park.
Liverpool take on Unai Emery’s side on Saturday afternoon as they look to keep up with Manchester City at the top of the Premier League table.
Arsenal are currently four points behind the Reds and sit in fourth place in the table. Sunday’s 2-2 draw against Crystal Palace put an end to an impressive 11-game winning streak.
Whilst Klopp has almost his entire squad to choose from, Emery has a contrasting injury scenario. Laurent Koscielny, Dinos Mavropanos and Mohamed Elneny are sidelined, while Hector Bellerin, Saed Kolasinac and Nacho Monreal are all doubts.