Originally Posted by JMG
Because he was the next best player who signed in for a LL spot. The 2nd round losers probably didn't sign in and left LA.
This is the right answer. Players have to sign-in every day until a ball has been struck in all first round matches (& in tournaments with first round byes, all second round matches) to be eligible for a lucky loser spot. If they don't sign in, they are not eligible even if they're higher ranked.
2005 ATP Offical Rulebook:
A. Lucky Loser Selection
A player may be entered in the main draw of a Tournament if he meets the criteria outlined
for a Lucky Loser.
1) Lucky Losers are players who have lost in the final round of the qualifying event or, if
more Lucky Losers are required, those players who have lost in the previous qualifying
round(s). The Lucky Losers shall be selected on the basis of their position on the
INDESIT ATP Entry Ranking (Singles) List (Entry Protection is not considered) used for
the determination of qualifying seeding; that is, the Lucky Loser with the highest
Entry Ranking position shall be the first inserted into the main draw and so forth. Only
those accepted into the qualifying competition may sign in as Lucky Losers.
2) The Lucky Loser list shall be posted each day at least one (1) hour before the sign-in
deadline, which shall be one-half (1/2) hour before the first scheduled match of the
day. If rain or other disruptions occur, then the Supervisor can change the deadline as
appropriate. Such list shall not be available for sign-in on the preceding day. All Lucky
Loser sign-in deadlines must be placed on each day’s schedule of play.