Luis Sinisterra is starting to make an impression on loan at Bournemouth after a difficult start to life on the south coast, but it could be the Colombian returns to Leeds United in the summer after all. The 24-year-old joined Bournemouth on deadline day in the summer, becoming the eighth senior player to leave using the relegation loan clause inserted into contracts by former sporting director Victor Orta. The likes of Robin Koch, Brenden Aaronson, Diego Llorente and others jumped ship like Sinisterra after relegation. He is just one example of Leeds and Bournemouth doing business in the summ…