No, you don't.
These are two screenies from Madden 11.
They show Madden Coverboy Drew Brees.
Look at the top one. The camera is a good...oh...at least five feet from Brees.
And yet...you can see every little texture in his jersey?
Put a shirt on the couch in your living room. Now look at it from across the room. Can you see the individual fibers?
Now look at the second one.
Look at the ball in his hands.
You can look at the ball from in your own hands and the texture doesn't stand out that much.
Instead of focusing on making ever more-megapixel textures and using reflections on non-reflective surfaces and using bloom to cover up jagged edges, developers should be looking at mirroring REAL LIFE.
No human being sees in HD. If you want your sports game to be "realistic", how about you stop making player models look like barrels on toothpicks?
It doesn't matter if you can tell the microfiber count of the fabric of your shirt if your model looks like a cartoon.