Lovren was withdrawn in the first half of Saturday’s 3-0 win at Bournemouth, with Wijnaldum and Lallana missing that trip to the south coast due to minor knocks.
Both Lovren and Wijnaldum have recovered, though, and were named in Liverpool’s 19-man travelling squad for Tuesday’s Champions League tie at Red Bull Arena.
However, Lallana has remained on Merseyside with a view to being able to train with his teammates again ahead of the weekend meeting with Watford.
“Gini and Dejan are completely fine,” Klopp told Liverpoolfc.com on board the Reds’ flight to Austria.