## I V. WORLD CHAMPIONSHIPS 

c) In the event the Captain is not on-site or not available, the number one (1) player shall assume the role of Captain or designate a non-playing team member as Captain. 

d) The Captain must be on-site for the duration of that team’s participation in the competition. The Captain shall be subject to all provisions of the Player Code of Conduct, including those pertaining to Dress and Equipment. 

2) Duties of the Captain.  The duties of the Captain are as follows: 

a) Designate the team’s lineup, after consultation with the team members; 

b) Act as official representative for their respective team; 

c) Attend all team meetings; and 

d) The designated Captain may sit on court during the match and may coach during changeovers, set-breaks and during play as long as it does not inter - rupt play. 

e) The Captain may speak to the Chair Umpire, however only the Player may initiate Challenges to line calls. 

## 3) Individual Coaches* 

a) Each player may have his personal coach be the designated coach for his matches provided the coach meets the following criteria: 

i) A Division I Player Member, in good standing, or 

ii) An ATP Coach Member, in good standing, or 

iii) If not meeting criteria established in i) or ii) above, the name of the pro - posed Coach must be submitted to the ATP Coaches Committee at least ten (10) days in advance of the event for approval. 

* Individual coaches with multiple players can coach their players even if they are competing for different countries. If a coach has one player on each competing team, then the coach may only be on court for one country in that tie. This does not apply if the individual coach is also the Captain of a team. A Captain may only sit on court and coach for the team he is captaining. 

4) Duties of the Coach . The duties of the coach are as follows: 

a) During each match the player involved may use his personal coach to assist him during the match. 

b) The coach will sit in the designated area assigned for the coach of that match. 

c) The coach may sit on court during the match and may coach during change - overs, set-breaks and during play as long as it does not interrupt play. 

d) Official team members/coaches may also communicate with the player during changeovers and set-breaks. 

e) All team members, Captain and coaches, when courtside, must sit in the area designated for the teams participating in that Tie. 

f) The coach must adhere to the ATP Code of Conduct, including logo restric - tions on attire. 

## 5) Player Designations 

a) Each team Captain shall submit to the ATP Supervisor, in writing, the name of the two (2) singles players and the doubles team selected to compete in the Tie. The singles players shall be the top two (2) ranked players (including protected ranking) as of the date of the entry deadline, unless there is a med - ically supported substitution, or otherwise approved by the Supervisor. 

b) The two (2) singles players, named from each country for the Tie, shall be designated as player 1 and player 2, based upon the most recent FedEx ATP Ranking (including Protected Ranking) as of the Monday prior to the start of 

## I V. WORLD CHAMPIONSHIPS 

the competition. Change may be allowed for medical conditions or for unfore - seen circumstances approved by the ATP Supervisor. 

c) For group stage ties, the team Captains must give in writing the names of the two (2) singles players and the doubles team to the Supervisor no later than 3:00pm on the day prior to the scheduled Tie. The doubles team may be chosen from any player named to the team. 

For the elimination stages of the event, the team Captain must give in writing the names of the two (2) singles players and the doubles team to the Super - visor within fifteen minutes after the completion of the second tie determining the teams for the upcoming knock-out tie. 

d) Following the conclusion of the second singles match, any change in the doubles team must be communicated to the Supervisor, in writing, within 10 minutes of the conclusion of the second singles match. The Supervisor shall notify the opposing Captain and all other relevant staff once both Captains have submitted their doubles teams. 

e) There shall be a maximum of twenty-five (25) minutes between the end of the last singles match and the start of the doubles match if one or more of the doubles players competed in the last singles match. If none of the players designated for the doubles has competed in the last singles match, the dou - bles shall be scheduled as “followed by” with the exact time determined by the Supervisor. Fifteen minutes is recommended following the conclusion of the second singles match, however doubles players who competed in the last singles match can elect to start after fifteen (15) minutes or after twenty-five (25) minutes. 

f) The Captain must name the doubles team one hour before the start of the day’s play if his team has no singles matches on that day (rain or other cause of delay). 

g) The team Captain may, whenever necessary, replace a singles player in the case of illness, injury or unforeseen circumstances approved by the ATP Su - pervisor. 

i) After the Order of Play is released and up to the start of the first match. 

ii) After the start of the first singles match. 

iii) A player who withdraws from the singles shall be eligible for doubles on that same day. 

iv) In the event of match changes, the Supervisor may allow reasonable time adjustments in the schedule. 

h) In the event of a conduct default, the Supervisor may decide to remove the offending player(s) for the remainder of the tie or event. 

H. Medical 

## 1) Tournament Doctor 

a) An official Tournament Doctor is required to be present at all times during play and a reasonable time before play begins. 

b) The tournament doctor shall be available for court calls as necessary. 

• Order of Play will be adjusted based upon the new team order, if nec - essary. 

• A player who is substituted for a player named to the second match cannot change the team order. For example, a player substituted for the number 2 player cannot have a better ranking than the player competing at number 1 for that team. 

