Guinea international Keita was one of the stars of the season as Leipzig finished second in their debut Bundesliga campaign.
Hernandez, 28, became Mexico's all-time leading goalscorer at the weekend, scoring his 47th goal in a 2-1 defeat to Croatia.
Kingsley Coman has said he thought about leaving Bayern Munich during an injury-hit second season, blaming a lack of trust from Carlo Ancelotti.
Philipp Lahm has been inducted into Bayern Munich's Hall of Fame in a ceremony on Monday.
Alonso came close to winning the Premier League in 2008-09, when Liverpool finished as runners-up to Manchester United.
A toxic mix of mistrust and communication failure has led to a point of no return for Thomas Tuchel and Borussia Dortmund.