West Ham boss Manuel Pellegrini is actively seeking to strengthen his defence ahead of the summer market.
The Mirror says after a productive first season as Pellegrini is looking at strengthening his defence.
The Hammers are said to be looking at Alaves centre-back Guillermo Maripan and Olympiakos left-back Leonardo Koutris.
Pellegrini is hoping defensive additions with help form his side's bid for European football next season.
The Hammers host Southampton on Saturday.
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