Summary
- West Ham confirms the signing of winger Luis Guilherme from Palmeiras for £20 million initial fee
- Guilherme agrees to a five-year contract with the option for a further year
- The 18-year-old’s arrival is expected to kick-start a summer spending spree at West Ham
- West Ham targets up to six signings, including a centre-forward, right-back, and new centre-back
