Alexander Isak is the most expensive signing in British football history following his £130 million transfer from Newcastle United to Premier League champions Liverpool.
With a great price tag comes great responsibility - but it doesn't mean it always works out, which is what Newcastle fans will be hoping after the summer's off-field drama. Some of the most expensive transfers in Premier League history were flops. Here, we've listed the top 10 all-time most expensive British transfers and explained how things went for the man in question.
