We propose a novel distributed sorting algorithm, named "CodedTeraSort", which substantially improves the execution time of the TeraSort benchmark in Hadoop MapReduce. The key idea of CodedTeraSort is to impose structured redundancy in data, in order to enable in-network coding opportunities that overcome the data shuffling bottleneck of TeraSort. We empirically evaluate the performance of CodedTeraSort algorithm on Amazon EC2 clusters, and demonstrate that it achieves 1.97x - 3.39x speedup, compared with TeraSort, for typical settings of interest.