At some point City wanted him, and Chelsea paid pretty penny to get him, he had a shit season last year, but I am quite surprised Chelsea are willing to let him go and not give him another chance to compete with Chilwell, granted I don't watch Chelsea games, but is he really so bad that Chelsea are willing to let go of him instead of giving him another season to work under Poch?
I also don't see the reason for us to target him, we can have Dalot+Fernandez cover that LB spot until either of Shaw or Malacia are fit.