Football Accumulator Tips: Netherlands U21, Portugal U21 & Spain U21 All Feature

Slovakia have been the first to score in their last seven, with Azerbaijan failing to keep a clean sheet in their last four. The visitors have conceded the first in five of their previous six.

Gibraltar are unbeaten in their last four meetings against Liechtenstein. The visitors are on a terrible run of no wins in 40 games and no goals scored in their previous three. Both sides have been he first to concede in eight of the last ten.

Bulgaria are unbeaten in their last seven, facing a Northern Ireland side who have lost only once in the previous five. Northern Ireland beat Luxembourg 2-0 in the previous game, and Bulgaria drew 0-0 with Belarus with ten men.

Denmark opened their Nations League campaign with a 2-0 win over nine-man Switzerland, whereas Serbia drew 0-0 with European Champions Spain. Serbia are winless in their previous four against Denmark, with the hosts keeping a clean sheet in three.

This fixture should provide goals on both ends, with neither side keeping a clean sheet in their previous five. The BTTS market has landed in four of Croatia's previous five and the last six for Poland.

Portugal opened their Nations League campaign with a 2-1 win over Croatia, with Scotland losing 3-2 at home to Poland. Scotland are without a win in five and no clean sheet in five also.

Sweden are unbeaten in their last seven against Estonia. The visitors have been the first to concede in five of their last six games and are without a clean sheet in their last 17 fixtures.

Spain are unbeaten in their last 11 games in all competitions. La Roja has won three of the previous five meetings between the two teams, with Switzerland failing to keep a clean sheet in their last six against the European Champions.