West Ham have been in contact with Freiburg defender Robin Koch’s agent, according to reports in the English media. The Hammers want to be kept informed in case any club makes a move for the centre-back.

Tottenham, Norwich and Leeds are also said to be interested in the 23-year-old, who has risen to the top of manager David Moyes’s list of summer transfer targets as he looks to reinforce the team’s defence.

Koch is the right age and profile for what the Irons are looking for, and he could be available for a reasonable price in the summer.

Press the “next page” as we go through five things you need to know about the German international defender.