The defender was once again left out of Swansea's squad as speculation mounts over his future on loan with the Welsh side.
Williams sat out their 1-1 draw at Huddersfield. He has played in just four of the last 16 games and reports claim Liverpool are looking into recalling him and re-despatching him to ensure he gets more game time.
Speaking about the situation, Swans' boss Martin said: "We've been really honest with Liverpool about the opportunities Rhys has had and the potential opportunities he has moving forward, so the ball is in their court.
“We can't send him back…That's the danger of doing loans. The parent club is always in control, to an extent.
“I think Rhys is in contact with them constantly about what's happening."
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