The Daily Star says the £27m-rated star will walk into the club today and request a move.
The France midfield general, 24, is a target for Arsenal but he wants to link up with old boss Mauricio Pochettino at Tottenham instead.
Spurs are preparing a £50m raid for both Schneiderlin and striker Jay Rodriguez.
Southampton are desperate for Rodriguez to stay following a tough summer that has seen them lose five of their top players.
But Rodriguez has turned down two contract offers already and the only doubt over whether a move will be done centres around his fitness.
For the big stories and the banter follow us on Twitter: @tribalfootball