Liverpool will pay Roma an extra £1.3m for forward Mohamed Salah once he reaches 20 goals for the campaign, according to a report.

The 25-year-old has proved good value for money since joining in the summer, having already reached the 19-goal mark with his opener against Everton last weekend.

Liverpool handed over an initial fee of £34m in July for the former Chelsea winger, and Gazzetta dello Sport suggests that a bonus clause was included as part of the five-year deal.

For the additional payment to be triggered, the Premier League's top scorer needs to produce just one more goal.

Salah is expected to start Liverpool's home match against West Bromwich Albion on the bench due to a minor hamstring injury sustained against Everton.