The deal was made possible after Sunderland's sporting director, Kristjaan Speakman, convinced both Guiu and Chelsea to agree to the transfer.

Speakman expressed gratitude towards Chelsea for trusting Sunderland with Guiu's development.

Guiu chose to join Sunderland despite having other attractive options. Speakman believes Guiu's skills will be a valuable addition to the team.

Guiu is a forward who brings a modern style of play to Sunderland. His abilities align with the team's needs.