Apply a very small drop of shoe glue in the tear. Latex foam is very absorbent, and too much glue will harden areas around the tear and cause more damage during future use. Add more glue only if necessary.
Press and hold both sides of the tear together for a few minutes.
Let the glue set for a few hours, or overnight if possible. Some brands of shoe glue will set in under an hour. Read the instructions that came with the glue to avoid using the gloves too soon and damaging them.
Practice catching and throwing a soccer ball with the gloves on to test the repaired area. A tear on an area that flexes often, such as the knuckles and thumb, may require more glue.