Fiorentina loanee Pedro put the hosts ahead with a low strike before Bruno Henrique converted from the penalty spot after a Leo Gomes handball.
Mainz failed to put up any resistance while Union relentlessly tripled their lead after Marvin Friedrich headed home Christopher Trimmel's free-kick in the 63rd minute for 3-0.
Esteban Burgos scored from the penalty spot for Eibar after 28 minutes, only for Toni Villa to equalize for the home team eight minutes later. Marco Dmitrovic then saved a penalty, and even though Pape Diop was sent off for the second time this season with 18 minutes remaining, before Rodrigues' later header gave Eibar three vital points in injury time.
Saturday's final game saw Betis bounce back after consecutive defeats with a 2-0 win away to Valencia. Sergio Canales celebrated his return to the Spanish national team squad by opened the scoring following a magnificent piece of control and shot in the 19th minute and Cristian Tello scored Betis' second of the game with 16 minutes left to play to assure they leapfrog Real Sociedad to sleep as leaders. Enditem
A survey spoke of nearly 70 percent claiming to have lost interest in the team's internationals after the 2018 World Cup's devastating outcome, followed by the disappointing Nations League.
The Czech player fired 23 winners in the match in which she converted four of her nine break points. Despite missing a chance of serving for the win in the eighth game of the second set at 5-2, she clinched it when opportunity appeared again in the tenth to wrap up the victory with a love game.
Cadiz and Granada shared the points in an Andalusian derby which began with German Sanchez's header for the visitors in the 27th minute before Ivan Alejo's driven shot assured Cadiz its first home point of the season three minutes after halftime.
"But I take it as a very positive thing. I am playing quite well to win against a player like Stefano today with this score.
The 29-year-old has been deployed by Toffees manager Carlo Ancelotti as a free-roaming No. 10, having been shunted out wide or used in a deeper midfield role during his limited opportunities for Real Madrid last season.
Loew had criticized the additional friendlies this year, as they are downsizing his time window for training sessions. Additional training is of more value for a team in a transition process than test-matches Loew stated.
The 51-year-old coach replaced interim coach Majid Namjoo Motlagh on the Tehran-based team.