Confirming player signings
I’m trying to find three other players from pre-2020 Premier League clubs, including youth or reserves. I've noted a few: Jamal Musiala and Bright Arrey-Mbi from Chelsea youth in 2019, Jérôme Boateng from Man City in 2011, and Pepe Reina from Liverpool in 2014. That gives me exactly four! It sounds plausible if they count any signings from PL clubs. However, the user mentioned "seven players," which adds ambiguity to the list. I think I’m on the right track.Clarifying player arrivals
I'm considering two interpretations of player arrivals for the user. If we focus only on senior first-team arrivals, there were 2 before 2020 (Boateng and Reina), and since then, there’s a count of 6 or 7, depending on including loans like Cancelo. The user mentioned 7 since 2020, which aligns with my count including Cancelo.
Alternatively, if counting all levels, there were 4 pre-2020 (adding Musiala and Arrey-Mbi), matching their number. I think the best approach is to confirm these counts, including loans and academy players, and request clarification on their definitions.
大体正确，但取决于“是否计入租借”和“是否把从英超俱乐部青训来的人也算进来”。
自2020年以来（按从英超俱乐部直接加盟，含租借，共7人）
- 2020：勒罗伊·萨内（曼城）
- 2022：萨迪奥·马内（利物浦）
- 2023：若昂·坎塞洛（曼城，租借） 
- 2023：哈里·凯恩（热刺）
- 2024：埃里克·戴尔（热刺）
- 2024：迈克尔·奥利塞（水晶宫）
- 2024：若昂·帕利尼亚（富勒姆）
2020年之前（常见口径的“4人”做法，是把青训引进也算上）
- 2011：热罗姆·博阿滕（曼城）
- 2014：佩佩·雷纳（利物浦）
- 2019：贾马尔·穆西亚拉（切尔西青训）
- 2019：布莱特·阿雷-姆比（切尔西青训）
口径差异提示
- 只算一线队“正式转会”、且不含租借/青训：2020年前其实只有2人（博阿滕、雷纳）；自2020年起为6人（萨内、马内、凯恩、戴尔、奥利塞、帕利尼亚），若把坎塞洛的租借也算就变成7人。
需要我按你偏好的口径（是否含租借、是否含青训）输出一份精确名单和转会费/时间轴吗？注：信息基于截至2024-10的公开报道，如2025又有新变动可以补充给我。