Aniston 'grieves for seriously ill pet dog'

Jennifer Aniston has reportedly been bracing herself for the emotional loss of her pet dog.

The former Friends star is said to be keeping a watchful eye on Norman, her 14-year-old corgi-terrier, who is suffering from severe digestive problems.

A source told OK: "Norman is old and hasn't been doing well. She's terrified her best friend could soon be gone."

The actress also has a 3-year-old white German shepherd named Dolly.