"We respect Jamaar's decision, but we are really sorry to see this," general manager Ernie Accorsi said. "I thought he was an outstanding prospect and played very well for us when he was healthy.
"We are placing him on reserve/retired and retaining our rights in case, at some point in the future, he changes his mind."
Taylor, a sixth-round draft choice in 2004, played in 13 games in his two seasons with the Giants. But several knee injuries, including one that limited him to five games in the 2005 season, led to his decision to retire.
Taylor caught six passes for 146 yards, a 24.3-yard average, all in the 2004 season. His most memorable game was on Nov. 28 against the Philadelphia Eagles, when he caught two passes – one for 52 yards and the other for 50 yards.
Taylor's senior season at Texas A&M was cut short after he suffered a torn anterior cruciate ligament.
WR Taylor Files Letter of Retirement
The Giants Beat Top Stories
Game Preview: Giants vs. RamsThe Giants Beat covers everything you need to know about the Giants first regular season game in London since 2007.
The Giants Beat8:12 AM
Cover 2: Top 2 Storylines for Giants vs. RamsThe Giants Beat details the top two storylines surrounding Big Blue's battle in London.
The Giants Beat8:04 AM
NFL Offensive Leaders Through Week 6Here's who has been putting up BIG offensive numbers through the first 6 weeks of the NFL season.
ScoutWednesday at 9:48 AM
Week 7 Fantasy Slant: Giants vs. RamsThe Giants Beat takes a look ahead at who will be the top performers for Fantasy Owners as the Giants take on the Rams in London.
The Giants BeatWednesday at 8:52 AM