Millwall's Alan Brooks, Michael Bostwick and Ross Gaynor have given the club a boost by agreeing extensions to their current contracts.
Goalkeeper Brooks and defender Bostwick have both signed new one-year deals, while striker Gaynor has extended his stay at the New Den for a further two years.
The Lions, who have been relegated to League One, are being temporarily managed by Alan McLeary following David Tuttle's departure last month.