Chelsea's final game before the international break sees them welcome Sheffield United to Stamford Bridge this afternoon.
Just four days after beating Atletico Madrid to reach the Champions League quarter-final, the Blues face the Blades for a place in the FA Cup semi-final as Thomas Tuchel looks to maintain his unbeaten start to life as head coach.
The Chelsea boss will be boosted by the returns of Jorginho and Mason Mount to the matchday squad after both midfielders were suspended for the clash against the La Liga leaders.
But whether Tuchel hands either player an immediate recall to the starting XI remains to be seen.
Ahead of the game against the Blades, the pair joined the likes of Tammy Abraham, Antonio Rudiger, Timo Werner, Hakim Ziyech, and N'Golo Kante were put through their paces at Cobham.
It was a normal session as one would expect, but there was a penalty shootout involving Mateo Kovacic and Kai Havertz.
As spotted in a 'Chelsea Unseen' training session video uploaded to the club's YouTube page, the midfield pair can be seen taking turns to shoot - with tiny footballs - from the penalty spot.
The shootout begins at around the 2.52-minute mark as Kovacic saves Havertz's first attempt.
However, the Croatia international can't take advantage as he also sees his first penalty saved and could then do nothing about last summer's big-money signing converting his second attempt.
Kovacic then hits the post, meaning Havertz races into a 2-0 lead after three penalties each.
Eventually, the Chelsea no.17 does convert from the spot and even manages to bring it back to 2-2 after Havertz misses his fourth attempt.
In the end, the battle ends all square as Kovacic squeezed in his final penalty to make it 3-3 and the pair embrace to suggest there was no winner.
With that said, it is unlikely that either player will be high in the penalty-taking pecking order at Chelsea.
Jorginho has since taken back the first-choice tag from Timo Werner following Tuchel's appointment and scored from the spot when the Blues beat the Blades in the Premier League last month.
And if the scores are level after extra-time today, a shootout will determine the penultimate FA Cup semi-finalists.
