Crystal Palace are ready to rival West Ham United’s attempts to sign the Hull City winger Robert Snodgrass, with the Scotland international expected to cost up to £9m despite having just 18 months remaining on his contract.

West Ham saw a £3m bid for the 29-year-old rejected on Friday, with Slaven Bilic’s side expected to return with a new offer over the weekend. Sam Allardyce, the Palace manager, is also keen on signing Snodgrass, who refused to sign a new three-year contract at Hull last month, although the club recently triggered a one-year contract extension that means he is tied to the club until the summer of 2018.

Palace are also confident of completing a deal for the versatile Republic of Ireland international Robbie Brady from Norwich, despite having already seen an offer of £7m for him rejected. The 24-year-old former Hull player is valued at around £12m by his club despite his contract also being set to expire in 2018, with Leicester are also interested.

Allardyce, who is expected to hand Loïc Rémy his Palace debut on Saturday on his return to the manager’s former club Bolton, is keen to strengthen his defence and has approached West Ham about the availability of the Wales defender James Collins. Palace are also interested in the Montpellier left back Jérôme Roussillon to provide cover for the injured defender Pape Souaré, who is a long term absentee after being involved in a car crash in September. The 24-year-old began his career at Sochaux before joining Montpellier in 2015.