West Ham are planning an ambition move for Swansea City pair Ki Sung-yueng and Alfie Mawson.
The Daily Mail says Ki is out of contract in the summer and is open to a move away.
The 28-year-old has made 11 appearances this season and David Moyes sees him as a player who can help West Ham keep possession and screen his back four.
Moyes is also a confirmed fan of Swansea's England U21 international Mawson, who he wanted to sign for Sunderland from Barnsley in August last year.
Swansea are reluctant to sell the 23-year-old defender, who is key to their survival but West Ham may also look to sweeten the deal by including striker Diafra Sakho, who is rated at £15 million.