Townsend has already had spells on loan with Championship sides Ipswich and Watford this season.
He goes straight into the Millwall squad for Tuesday's visit of Queens Park Rangers.
Source: BBC Sport
Townsend has already had spells on loan with Championship sides Ipswich and Watford this season.
He goes straight into the Millwall squad for Tuesday's visit of Queens Park Rangers.
Source: BBC Sport
