Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: Happy that we played tgt as a team once. Thought there would be another chance out there but sadly no. Rest In Peace my dear friend. :(
This tweet contains emotions: 
sadness