Has chelsea bought a new player

As of my knowledge cutoff, Chelsea FC has made a few signings in the 2022-23 transfer window. Here are a few notable ones:

1. Kai Havertz (Midfielder): Chelsea signed Kai Havertz from Bayer Leverkusen in September 2020 for a reported fee of £72 million.
2. Romelu Lukaku (Striker): Chelsea signed Romelu Lukaku from Inter Milan in August 2021 for a reported fee of £97.5 million.
3. André Onana (Goalkeeper): Chelsea signed André Onana from Internazionale in June 2022 for a reported fee of £30 million.
4. Kalidou Koulibaly (Defender): Chelsea signed Kalidou Koulibaly from Napoli in June 2022 for a reported fee of £34 million.
5. Carney Chukwuemeka (Midfielder): Chelsea signed Carney Chukwuemeka from Aston Villa in June 2022 for a reported fee of £15 million.
6. Noni Madueke (Midfielder): Chelsea signed Noni Madueke from PSV Eindhoven in June 2022 for a reported fee of £25 million.
7. Andreas Christensen (Defender): Chelsea signed Andreas Christensen from Borussia Mönchengladbach in June 2022 for a reported fee of £50 million.

Please note that the transfer market is constantly evolving, and Chelsea may make additional signings or sales before the transfer window closes.