What must agents do in order to represent a player in contract negotiations?

To represent a player in contract negotiations, agents are required to obtain written consent from the player. This step is crucial as it establishes a formal relationship between the player and the agent, allowing the agent to act on the player's behalf in all matters related to contract negotiations.

This written consent ensures that the agent has the legal authority to negotiate terms and conditions with teams, advocating for the player’s interests. Without this authorization, any negotiations conducted by the agent would not be recognized as valid or binding, potentially leaving the player without representation in crucial discussions regarding their career and earnings.

This requirement supports the integrity of the player-agent relationship and ensures that players have an active role in choosing who will represent them in the complex world of contract negotiations. The other options, while possibly relevant in various contexts, do not fulfill this essential prerequisite for representation.