There were no objections to the penalty decision, which was made after Bissouma lifted his arms to prevent a Naby Keita blow.
Salah converted the penalty, bringing his league record to 20, with five of those goals coming from the spot.
Salah's concentration did not appear to be affected by recent reports about his contract. As he normally does, he boldly stepped up and converted the penalty with ease.
With a win at Brighton, Liverpool would close the gap on championship favourites Manchester City to just three points. On Monday night, Pep Guardiola's side will face Crystal Palace.
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Alphonsus Odumu 6 w
Salah