Manchester City may be 15 points clear at the top of the Premier League but Pep Guardiola is keen to strengthen the Blues yet further.
And the first area to target is centre-back with Plan B to be pursued after missing out to Liverpool in the race for Virgil van Dijk.
The Reds swooped in to sign the Southampton star for £75m, while Vincent Kompany's latest injury has left Guardiola frantically searching for alternatives.
City would not match Saints' price tag for Van Dijk, insistsing £60m was their absolute limit, which leaves them considering a move for West Brom's Jonny Evans, report the Telegraph.
Arsenal and Everton are also keen, meaning the Baggies should fetch £30m for the 29-year-old, which could push City to consider Real Sociedad's Inigo Martinez as another option.
Transfer news and gossip from Friday's Daily Mirror
Southampton eye Theo Walcott return as part of January rebuild following Virgil van Dijk exit
The Saints are also eyeing Liverpool striker Daniel Sturridge, Celtic's Moussa Dembele and Swansea defender Alfie Mawson
Everton are on the brink of signing £25m Besiktas striker Cenk Tosun as Sam Allardyce lands Romelu Lukaku replacement
Chelsea are hopeful of fending off Real Madrid interest to seal new five-year deal for Thibaut Courtois
West Ham plot Joe Allen transfer as David Moyes looks to reshape struggling squad in January window
RB Leipzig make £17m move for Reece Oxford - but West Ham want to recall teenager from Bundesliga loan
Transfer news and gossip from other newspapers and websites
Stoke, West Brom, West Ham and Newcastle will submit loan offers for Liverpool's Danny Ings (Sky Sports)
Leicester are eyeing Benfica star Andre Almeida (Mercury)