Millwall have reportedly indicated that they wish to sign goalkeeper Max Grun on a free transfer.
The Lions came close to sealing a place in the Championship playoffs last summer, but work is well underway regarding the make-up of next season's squad.
Ben Amos has already been brought in on a season-long loan deal and according to reports in Germany, Grun is on the radar of manager Neil Harris.
The 31-year-old began his career at Bayern Munich but has spent the last five years at Wolfsburg before being released at the end of the campaign.
Grun spent his time at the Bundesliga side as second choice, with just one first-team outing being made over the past 12 months.
