Isco, who scored in the Champions League semi-final second leg at Atletico Madrid, seemed focused as he practised his shooting at the session.
Isco got a vital away goal three minutes before half-time after brilliant work from Karim Benzema in twisting his way past two defenders on the goal-line before pulling the ball back for Tony Kroos.
Real Madrid coach Zinedine Zidane denied suggestions his team are favourites going into in the Champions League final against Juventus.
The goal all but ended Atletico's hopes of advancing, and the second half was played at a much calmer pace, with few significant scoring opportunities for both teams.
The Spanish worldwide and four-time victor of the competition said, via Marca.: "Madrid and Juve are just Champions finalists, but you lose interest when you do not play the final".
Atletico hassled and harried the visitors, creating gaps in a panicky away defence.
Sweeping irresistibly forward, Fernando Torres was fouled by Raphael Varane in the box and Griezmann calmly slotted the resulting penalty past Real goalkeeper Keylor Navas.
"We have a better chance than ever (to do the double), four games to win the league and Champions League, but we still haven't won anything, we have to continue on the same path and keep working".
"We knew that with a goal we would kill them, we had more experience and we showed it", Ronaldo told Cadena SER.
Last week's chastening 3-0 defeat at the Bernabeu left Atletico needing a repeat of their sensational 4-0 win over their fierce local rivals in La Liga in 2015 to prevent a fourth straight European defeat by Real side who have not lost by more than one goal this campaign. "We look very good in LaLiga and are in the Champions League final, but it does not mean anything", said the Frenchman.
Atletico moved into the bowl-like stadium in 1966, but will leave this summer for a state-of-the-art 76,000-seat stadium on the eastern outskirts of the Spanish capital.
Generally Atletico's age profile is promising with Jan Oblak (24), Jose Maria Gimenez (22), Lucas Hernandez (21), Saul Niguez (22), Koke (25) and Yannick Carrasco (23) all with the prime years of their career to come.
Next up for Real is a tough home fixture against Sevilla, where they will be looking to extract revenge after Jorge Sampaoli's men won 2-1 back in January.
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