PVS-Studio warning V557 for Quake3

int   numteamVotingClients[2];

void CalculateRanks( void ) {
  ...
  for ( i = 0; i < TEAM_NUM_TEAMS; i++ ) {
    level.numteamVotingClients[i] = 0;
  }
  ...
}

This suspicious code was found in Quake3 project by PVS-Studio static code analyzer.
Warning message is:
V557 Array overrun is possible. The value of 'i' index could reach 3. game g_main.c 776

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/