Atlético Madrid B suffered its first defeat this season, a 2-1 loss to La Roda on Sunday after Kader was sent off just eight minutes into the game.
The right back received his marching orders after bringing down one of La Roda’s forwards. The ensuing penalty was converted by Sergio Ortiz.
Atleti B-coach Milinko Pantic was forced to take off José Collado, scorer of a hat-trick against Celta B, and brought on an extra defender.
Shortly before half time the visitors doubled their lead. Goalkeeper Iago misjudged a free-kick coming in from the left and Buendía volleyed the ball into the back of the net.
After the break Atleti quickly scored a goal to put them back into the game. Pedro Martín tapped the ball into an empty goal after good work by Javi Cantero.
Late on Atleti had a goal controversially disallowed for offside and the match ended in defeat for our youngsters.
Atlético B has picked up four points from the first three league games. On Wednesday the team travels to Lugo to play the local side, after their match was postponed last week due to a Spain U-21 game being hosted at the Anxo Carro stadium.
Line-up: Iago; Kader, César, Regalón, Cantero; Fer, Noguera, Cidoncha (“61 Ndoye), Saúl (“72 Roberto); Collado (“21 Míchel) and Pedro.
Goals: 0-1 Sergio (p.k.)(“9); 0-2 Buendía (“45); 1-2 Pedro (“53)