That's just plain wrong. I'm guessing you're too young to have seen the first half of his career but he had a huge amount of trouble with hamstring injuries.
OK So I decided to go check the actual stats, the seasons where he seems to have been most affect by injuries are 96/97, 98/99, where he played 26/24 of the 38 league games (note he still played 37 and 41 games in those seasons). This is for PL only, as we cannot tell a great deal from cups due to the way we played them at times, also its not certain that him missing games is down to injury but I will assume so for the stats.
in 96/97 he missed the first game played the first 7 games was out for 3, came back played 1, missed one then played 18 games before missing the last games to the end of the season
98/99 - 2 in, 1 out, 3 in, 1 out, 2 in, 4 out, 11 in, 1 out, 6 in, 5 out, 2 in
So arguably yes in 98/99 he had a particularly bad season, but again he still played over 40 games that year.