Crystal Palace have made a bid for West Brom striker Saido Berahino, according to Sky sources.
It is understood the offer is in excess of the bid made for the player by Stoke City earlier this week, which we understand was £20m.
Both Palace and Stoke are still awaiting a response to their offers.
Earlier this month, Palace made a £25m offer for Christian Benteke but the Belgian forward is determined to stay at Liverpool and fight for his place, according to his agent.
Berahino is in the final year of his contract at West Brom and flatly turned down the offer of a new contract last month.
It is understood that Stoke are prepared to pay £17m up front with a further £3m in add-ons for Berahino, but the Baggies are not prepared to let him leave until they have lined up a new striker of their own.
Sky sources understand that Albion are interested in West Ham's wantaway striker Diafra Sakho, who is a target for Sunderland, but, like West Brom, the Hammers are reluctant to negotiate a deal without having plans in place for a replacement.
West Ham have been struggling all summer to land a coveted new centre-forward, seeing their interest in the likes of Michy Batshuayi, Christian Benteke, Alexandre Lacazette and Callum Wilson fail.
Earlier this month, we reported that West Ham have now turned their attentions to AC Milan striker Carlos Bacca, but are yet to agree a deal.