He expressed his excitement about joining the Merseyside club.
Oliver Glasner’s side now sits 15th in the Premier League table with a difficult schedule ahead.
Julen Lopeteggui replaced Bruno Lage, who was sacked by Wolves last month.
The 37-year-old was pictured with Diogo Dalot leaving Sunday’s game before full-time.
To some, the result could mean that Barca are on the slide.
At ninth place, Barcelona is in danger of missing out on the Champions League knockout phase for the first time in 20 years.
FC Barcelona have suffered back-to-back defeats in LaLiga as they slumped to a 1-0 loss at Rayo Vallecano on Wednesday.
