Bournemouth boosted their European hopes with a thumping 3-0 Premier League win over woeful Crystal Palace . A calamitous own goal from former Cherries midfielder Jefferson Lerma and Junior Kroupi’s 32nd-minute penalty set the in-form hosts on course to climb to sixth place in the table. Brazilian winger Rayan completed the scoring 13 minutes from time as Andoni Iraola ’s side stretched their remarkable unbeaten run to 15 top-flight games in convincing fashion. Jefferson Lerma's calamitous own goal summed up a wretched display from Crystal Palace (PA) Palace’s visit to the Vitality Stadium was sandwiched between their two-legged Conference League semi-final against Shakhtar Donetsk, which they lead 3-1 on aggregate. Eagles manager Oliver Glasner made five changes for the match and watched his 15th-placed side contribute to their own downfall during a wretched display.…