The Blues wrapped up a £70m deal for Havertz last week, with the German midfielder joining the likes of Timo Werner, Hakim Ziyech, Ben Chilwell and Silva in arriving at Stamford Bridge.
Chelsea signed Brazilian defender Silva on a free transfer after he ended his eight-year spell at PSG, in which he won multiple Ligue 1 titles and reached the Champions League final.
On Silva, Chelsea defender Rudiger said: ‘He is one of the best of his generation, definitely.
‘Of course, first of all, to learn from such a great player and everything, and also to have the chance to play alongside this type of player, it is massive.
‘I think it gives everyone a boost and I’m looking forward to it.’
Asked about the arrival of German duo Havertz and Werner, Rudiger added to Chelsea’s official website: ‘It’s important for me, especially with the Germans, to help them and everything because it is the first time they have lived out of Germany.
‘To look after them, help them and assist them with everything. I’ve known Timo for a long time and we played together in the national team.
‘He’s a brilliant player and he’s there to score goals.
‘He did that in the friendly match against Brighton and he did that also in the international break, so I hope he’s going to do the same here with us at Chelsea in the future.
‘Kai has played in the national team for two years so we have a good understanding too, so they know that I will help them for sure.’