It's a completely normal – they've played longer together than Virgil has played with them," Klopp told a post-match news conference.
"Southampton play a completely different style to us, plus the fitness thing. It's clear, in half a year, Virgil will be a completely different player to last week or next week. That's completely normal.
"It's a very important position and very important that it is really tuned between the parts and stuff like that. For today, it was simply a physical thing and that's it."
"Southampton play a completely different style to us, plus the fitness thing. It's clear, in half a year, Virgil will be a completely different player to last week or next week. That's completely normal.
"It's a very important position and very important that it is really tuned between the parts and stuff like that. For today, it was simply a physical thing and that's it."