The Brazilian is set to remain sidelined with the foot injury that has kept him out of the Reds' last two fixtures.
However, the manager has reported no other fresh fitness concerns following Sunday’s Merseyside derby win over Everton.
Offering an update ahead of Wednesday’s encounter at Anfield, Klopp told Liverpoolfc.com: "I don't think [he is ready] yet.
“He is running outside and that's good, obviously, but I am not sure. Maybe somebody will surprise me afterwards and tell me, 'Yes, Bobby is in.' [I will have] open arms, but I don't think so.
“Apart from that, no [new injuries] that I know yet.”