Olympics-Athletics-Britain set the pace in women's 4x100m relay
Dina-Asher Smith recovered from her hamstring strain to help Britain to a national record of 41.55 seconds and into the Olympic 4x100 metres relay final as the fastest qualifiers on Thursday.
Asher-Smith withdrew from the 200m, where she is world champion, after being hampered by the injury in the 100, but she showed no ill-effects while running a superb leg as Britain's crisp changeovers brought them home ahead of the United States. The United States (41.90) and Jamaica, who finished third in 42.15 but will probably be strengthened by the introduction of Elaine Thompson-Herah and Shelly-Ann Fraser-Pryce, also advanced to Friday's final.
Gina Luckenkemper ran a storming last leg as Germany overhauled Switzerland to win the second semi in 42.00 while the Swiss notched a national record -- one of five on Thursday -- of 42.05 and progress as the fourth-fastest qualifiers.
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